diff --git a/addons/product/__manifest__.py b/addons/product/__manifest__.py
index 228d69b2b7a..8bb0d8efdc7 100644
--- a/addons/product/__manifest__.py
+++ b/addons/product/__manifest__.py
@@ -37,6 +37,7 @@ Print product labels with barcode.
 
         'views/res_config_settings_views.xml',
         'views/product_attribute_views.xml',
+        'views/product_attribute_value_views.xml',
         'views/product_category_views.xml',
         'views/product_document_views.xml',
         'views/product_packaging_views.xml',
diff --git a/addons/product/models/product_attribute.py b/addons/product/models/product_attribute.py
index c0d32f94469..b3319afa471 100644
--- a/addons/product/models/product_attribute.py
+++ b/addons/product/models/product_attribute.py
@@ -11,6 +11,14 @@ class ProductAttribute(models.Model):
     # `_sort_key_attribute_value` in `product.template`
     _order = 'sequence, id'
 
+    _sql_constraints = [
+        (
+            'check_multi_checkbox_no_variant',
+            "CHECK(display_type != 'multi' OR create_variant = 'no_variant')",
+            "Multi-checkbox display type is not compatible with the creation of variants"
+        ),
+    ]
+
     name = fields.Char(string="Attribute", required=True, translate=True)
     create_variant = fields.Selection(
         selection=[
@@ -31,6 +39,7 @@ class ProductAttribute(models.Model):
             ('pills', 'Pills'),
             ('select', 'Select'),
             ('color', 'Color'),
+            ('multi', 'Multi-checkbox (option)'),
         ],
         default='radio',
         required=True,
diff --git a/addons/product/models/product_attribute_value.py b/addons/product/models/product_attribute_value.py
index 7c4033ea847..b6804793095 100644
--- a/addons/product/models/product_attribute_value.py
+++ b/addons/product/models/product_attribute_value.py
@@ -34,6 +34,7 @@ class ProductAttributeValue(models.Model):
     is_used_on_products = fields.Boolean(
         string="Used on Products", compute='_compute_is_used_on_products')
 
+    default_extra_price = fields.Float()
     is_custom = fields.Boolean(
         string="Is custom value",
         help="Allow users to input custom values for this attribute value")
diff --git a/addons/product/models/product_template.py b/addons/product/models/product_template.py
index 63104d33152..2d6ef6d684e 100644
--- a/addons/product/models/product_template.py
+++ b/addons/product/models/product_template.py
@@ -1257,7 +1257,9 @@ class ProductTemplate(models.Model):
 
         necessary_values = necessary_values or self.env['product.template.attribute.value']
         necessary_attribute_lines = necessary_values.mapped('attribute_line_id')
-        attribute_lines = self.valid_product_template_attribute_line_ids.filtered(lambda ptal: ptal not in necessary_attribute_lines)
+        attribute_lines = self.valid_product_template_attribute_line_ids.filtered(
+            lambda ptal: ptal not in necessary_attribute_lines and (
+                ptal.attribute_id.display_type != 'multi'))
 
         if not attribute_lines and self._is_combination_possible(necessary_values, parent_combination):
             yield necessary_values
diff --git a/addons/product/models/product_template_attribute_line.py b/addons/product/models/product_template_attribute_line.py
index adfc88170ad..9cc23fb1ad1 100644
--- a/addons/product/models/product_template_attribute_line.py
+++ b/addons/product/models/product_template_attribute_line.py
@@ -235,7 +235,8 @@ class ProductTemplateAttributeLine(models.Model):
                     # create values that didn't exist yet
                     ptav_to_create.append({
                         'product_attribute_value_id': pav.id,
-                        'attribute_line_id': ptal.id
+                        'attribute_line_id': ptal.id,
+                        'price_extra': pav.default_extra_price,
                     })
             # Handle active at each step in case a following line might want to
             # re-use a value that was archived at a previous step.
diff --git a/addons/product/views/product_attribute_value_views.xml b/addons/product/views/product_attribute_value_views.xml
new file mode 100644
index 00000000000..1254bff6fe4
--- /dev/null
+++ b/addons/product/views/product_attribute_value_views.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="product_attribute_value_list" model="ir.ui.view">
+        <field name="name">product.attribute.value.list</field>
+        <field name="model">product.attribute.value</field>
+        <field name="arch" type="xml">
+            <tree string="Attribute Values">
+                <field name="name"/>
+                <field name="default_extra_price"/>
+            </tree>
+        </field>
+    </record>
+
+</odoo>
diff --git a/addons/product/views/product_attribute_views.xml b/addons/product/views/product_attribute_views.xml
index 6410cde4351..11703518fdf 100644
--- a/addons/product/views/product_attribute_views.xml
+++ b/addons/product/views/product_attribute_views.xml
@@ -30,11 +30,13 @@
                         </div>
                     </button>
                 </div>
-                <group name="main_fields" class="o_label_nowrap">
-                    <label for="name" string="Attribute Name"/>
-                    <field name="name" nolabel="1"/>
-                    <field name="display_type" widget="radio"/>
-                    <field name="create_variant" widget="radio" readonly="number_related_products != 0"/>
+                <group name="main_fields">
+                    <group name="sale_main_fields">
+                        <label for="name" string="Attribute Name"/>
+                        <field name="name" nolabel="1"/>
+                        <field name="display_type" widget="radio"/>
+                        <field name="create_variant" widget="radio" readonly="number_related_products != 0"/>
+                    </group>
                 </group>
                 <notebook>
                     <page string="Attribute Values" name="attribute_values">
@@ -43,8 +45,9 @@
                                 <field name="sequence" widget="handle"/>
                                 <field name="name"/>
                                 <field name="display_type" column_invisible="True"/>
-                                <field name="is_custom" groups="product.group_product_variant"/>
+                                <field name="is_custom" groups="product.group_product_variant" column_invisible="parent.display_type == 'multi'"/>
                                 <field name="html_color" column_invisible="parent.display_type != 'color'" widget="color"/>
+                                <field name="default_extra_price"/>
                             </tree>
                         </field>
                     </page>
diff --git a/addons/sale/models/sale_order_line.py b/addons/sale/models/sale_order_line.py
index 416a036a85f..3a4c10b5177 100644
--- a/addons/sale/models/sale_order_line.py
+++ b/addons/sale/models/sale_order_line.py
@@ -9,7 +9,7 @@ from odoo import api, fields, models, _
 from odoo.exceptions import UserError
 from odoo.fields import Command
 from odoo.osv import expression
-from odoo.tools import float_is_zero, float_compare, float_round, format_date
+from odoo.tools import float_is_zero, float_compare, float_round, format_date, groupby
 
 
 class SaleOrderLine(models.Model):
@@ -365,12 +365,21 @@ class SaleOrderLine(models.Model):
 
         custom_ptavs = self.product_custom_attribute_value_ids.custom_product_template_attribute_value_id
         no_variant_ptavs = self.product_no_variant_attribute_value_ids._origin
+        multi_ptavs = no_variant_ptavs.filtered(lambda ptav: ptav.display_type == 'multi').sorted()
 
         # display the no_variant attributes, except those that are also
         # displayed by a custom (avoid duplicate description)
-        for ptav in (no_variant_ptavs - custom_ptavs):
+        for ptav in (no_variant_ptavs - multi_ptavs - custom_ptavs):
             name += "\n" + ptav.display_name
 
+        # display the selected values per attribute on a single for a multi checkbox
+        for pta, ptavs in groupby(multi_ptavs, lambda ptav: ptav.attribute_id):
+            name += "\n" + _(
+                "%(attribute)s: %(values)s",
+                attribute=pta.name,
+                values=", ".join(ptav.name for ptav in ptavs)
+            )
+
         # Sort the values according to _order settings, because it doesn't work for virtual records in onchange
         sorted_custom_ptav = self.product_custom_attribute_value_ids.custom_product_template_attribute_value_id.sorted()
         for patv in sorted_custom_ptav:
diff --git a/addons/sale_product_configurator/controllers/main.py b/addons/sale_product_configurator/controllers/main.py
index f5d4d8ad175..cca3513900f 100644
--- a/addons/sale_product_configurator/controllers/main.py
+++ b/addons/sale_product_configurator/controllers/main.py
@@ -280,9 +280,9 @@ class ProductConfiguratorController(Controller):
                     ) for ptav in ptal.product_template_value_ids
                     if ptav.ptav_active
                 ],
-                selected_attribute_value_id=combination.filtered(
+                selected_attribute_value_ids=combination.filtered(
                     lambda c: ptal in c.attribute_line_id
-                ).id,
+                ).ids,
                 create_variant=ptal.attribute_id.create_variant,
             ) for ptal in product_template.attribute_line_ids],
             exclusions=attribute_exclusions['exclusions'],
diff --git a/addons/sale_product_configurator/static/src/js/product_configurator_dialog/product_configurator_dialog.js b/addons/sale_product_configurator/static/src/js/product_configurator_dialog/product_configurator_dialog.js
index 66c55cb7da9..87b1eeddf5f 100644
--- a/addons/sale_product_configurator/static/src/js/product_configurator_dialog/product_configurator_dialog.js
+++ b/addons/sale_product_configurator/static/src/js/product_configurator_dialog/product_configurator_dialog.js
@@ -206,17 +206,28 @@ export class ProductConfiguratorDialog extends Component {
     }
 
     /**
-     * Change the value of `selected_attribute_value_id` on the given PTAL in the product.
+     * Change the value of `selected_attribute_value_ids` on the given PTAL in the product.
      *
      * @param {Number} productTmplId - The product template id, as a `product.template` id.
      * @param {Number} ptalId - The PTAL id, as a `product.template.attribute.line` id.
      * @param {Number} ptavId - The PTAV id, as a `product.template.attribute.value` id.
+     * @param {Boolean} multiIdsAllowed - Whether multiple `product.template.attribute.value` can be selected.
      */
-    async _updateProductTemplateSelectedPTAV(productTmplId, ptalId, ptavId) {
+    async _updateProductTemplateSelectedPTAV(productTmplId, ptalId, ptavId, multiIdsAllowed) {
         const product = this._findProduct(productTmplId);
-        product.attribute_lines.find(
-            ptal => ptal.id === ptalId
-        ).selected_attribute_value_id = parseInt(ptavId);
+        let selectedIds = product.attribute_lines.find(ptal => ptal.id === ptalId).selected_attribute_value_ids;
+        if (multiIdsAllowed) {
+            const ptavID = parseInt(ptavId);
+            if (!selectedIds.includes(ptavID)){
+                selectedIds.push(ptavID);
+            } else {
+                selectedIds = selectedIds.filter(ptav => ptav !== ptavID);
+            }
+
+        } else {
+            selectedIds = [parseInt(ptavId)];
+        }
+        product.attribute_lines.find(ptal => ptal.id === ptalId).selected_attribute_value_ids = selectedIds;
         this._checkExclusions(product);
         if (this._isPossibleCombination(product)) {
             const updatedValues = await this._updateCombination(product, product.quantity);
@@ -234,7 +245,7 @@ export class ProductConfiguratorDialog extends Component {
     _updatePTAVCustomValue(productTmplId, ptavId, customValue) {
         const product = this._findProduct(productTmplId);
         product.attribute_lines.find(
-            ptal => ptal.selected_attribute_value_id === ptavId
+            ptal => ptal.selected_attribute_value_ids.includes(ptavId)
         ).customValue = customValue;
     }
 
@@ -328,7 +339,7 @@ export class ProductConfiguratorDialog extends Component {
      * @return {Array} - The combination of the product.
      */
     _getCombination(product) {
-        return product.attribute_lines.map(ptal => ptal.selected_attribute_value_id);
+        return product.attribute_lines.flatMap(ptal => ptal.selected_attribute_value_ids);
     }
 
     /**
@@ -354,8 +365,8 @@ export class ProductConfiguratorDialog extends Component {
      */
     _isPossibleCombination(product) {
         return product.attribute_lines.every(ptal => !ptal.attribute_values.find(
-            ptav => ptav.id === ptal.selected_attribute_value_id
-        ).excluded);
+            ptav => ptal.selected_attribute_value_ids.includes(ptav.id)
+        )?.excluded);
     }
 
     /**
diff --git a/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.js b/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.js
index 908e3b27d45..adc1f271b52 100644
--- a/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.js
+++ b/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.js
@@ -17,7 +17,7 @@ export class ProductTemplateAttributeLine extends Component {
                 name: String,
                 display_type: {
                     type: String,
-                    validate: type => ["color", "pills", "radio", "select"].includes(type),
+                    validate: type => ["color", "multi", "pills", "radio", "select"].includes(type),
                 },
             },
         },
@@ -35,7 +35,7 @@ export class ProductTemplateAttributeLine extends Component {
                 },
             },
         },
-        selected_attribute_value_id: Number,
+        selected_attribute_value_ids: { type: Array, element: Number },
         create_variant: {
             type: String,
             validate: type => ["always", "dynamic", "no_variant"].includes(type),
@@ -54,7 +54,7 @@ export class ProductTemplateAttributeLine extends Component {
      */
     updateSelectedPTAV(event) {
         this.env.updateProductTemplateSelectedPTAV(
-            this.props.productTmplId, this.props.id, event.target.value
+            this.props.productTmplId, this.props.id, event.target.value, this.props.attribute.display_type == 'multi'
         );
     }
 
@@ -65,7 +65,7 @@ export class ProductTemplateAttributeLine extends Component {
      */
     updateCustomValue(event) {
         this.env.updatePTAVCustomValue(
-            this.props.productTmplId, this.props.selected_attribute_value_id, event.target.value
+            this.props.productTmplId, this.props.selected_attribute_value_ids[0], event.target.value
         );
     }
 
@@ -76,11 +76,12 @@ export class ProductTemplateAttributeLine extends Component {
     /**
      * Return template name to use by checking the display type in the props.
      *
-     * Each attribute line can have one of this four display types:
+     * Each attribute line can have one of this five display types:
      *      - 'Color'  : Display each attribute as a circle filled with said color.
      *      - 'Pills'  : Display each attribute as a rectangle-shaped element.
      *      - 'Radio'  : Display each attribute as a radio element.
      *      - 'Select' : Display each attribute in a selection tag.
+     *      - 'Multi'  : Display each attribute in a multi-checkbox tag.
      *
      * @return {String} - The template name to use.
      */
@@ -88,6 +89,8 @@ export class ProductTemplateAttributeLine extends Component {
         switch(this.props.attribute.display_type) {
             case 'color':
                 return 'saleProductConfigurator.ptav-color';
+            case 'multi':
+                return 'saleProductConfigurator.ptav-multi';
             case 'pills':
                 return 'saleProductConfigurator.ptav-pills';
             case 'radio':
@@ -126,7 +129,7 @@ export class ProductTemplateAttributeLine extends Component {
      */
     isSelectedPTAVCustom() {
         return this.props.attribute_values.find(
-            ptav => this.props.selected_attribute_value_id === ptav.id
-        ).is_custom;
+            ptav => this.props.selected_attribute_value_ids.includes(ptav.id)
+        )?.is_custom;
     }
  }
diff --git a/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.xml b/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.xml
index c26b71a5fa4..e9199c2d881 100644
--- a/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.xml
+++ b/addons/sale_product_configurator/static/src/js/product_template_attribute_line/product_template_attribute_line.xml
@@ -29,7 +29,7 @@
                 t-as="ptav"
                 t-key="ptav.id"
                 t-att-value="ptav.id"
-                t-att-selected="ptav.id === this.props.selected_attribute_value_id"
+                t-att-selected="this.props.selected_attribute_value_ids.includes(ptav.id)"
                 t-out="getPTAVSelectName(ptav)"
                 t-att-class="{ 'css_not_available': ptav.excluded }"/>
         </select>
@@ -54,7 +54,7 @@
                         class="form-check-input"
                         t-att-id="ptav.id"
                         t-att-value="ptav.id"
-                        t-att-checked="ptav.id === this.props.selected_attribute_value_id"
+                        t-att-checked="this.props.selected_attribute_value_ids.includes(ptav.id)"
                         t-att-name="'ptal-' + this.props.id"
                         t-on-change="updateSelectedPTAV"/>
                 </div>
@@ -64,7 +64,7 @@
     <t t-name="saleProductConfigurator.ptav-pills">
          <ul t-attf-class="list-inline list-unstyled">
             <li t-foreach="this.props.attribute_values" t-as="ptav" t-key="ptav.id"
-                t-att-class="{'active': ptav.id === this.props.selected_attribute_value_id}"
+                t-att-class="{'active': this.props.selected_attribute_value_ids.includes(ptav.id)}"
                 class="o_sale_product_configurator_ptav_pills btn btn-primary list-inline-item mb-3">
                 <div class="form-check">
                     <label
@@ -82,7 +82,7 @@
                         t-att-id="ptav.id"
                         t-att-value="ptav.id"
                         t-att-name="'ptal-' + this.props.id"
-                        t-att-checked="ptav.id === this.props.selected_attribute_value_id"
+                        t-att-checked="this.props.selected_attribute_value_ids.includes(ptav.id)"
                         t-on-change="updateSelectedPTAV"/>
                 </div>
             </li>
@@ -95,16 +95,46 @@
                 <label
                     t-att-title="ptav.name"
                     t-attf-style="background-color:#{ptav.is_custom ? '' : ptav.html_color}"
-                    t-att-class="{'o_sale_product_configurator_ptav_color': true, 'active': ptav.id === this.props.selected_attribute_value_id, 'custom_value': ptav.is_custom, 'transparent': !ptav.is_custom and !ptav.html_color, 'css_not_available': ptav.excluded }">
+                    t-att-class="{'o_sale_product_configurator_ptav_color': true,
+                                  'active': this.props.selected_attribute_value_ids.includes(ptav.id),
+                                  'custom_value': ptav.is_custom,
+                                  'transparent': !ptav.is_custom and !ptav.html_color,
+                                  'css_not_available': ptav.excluded }">
                     <input
                         type="radio"
                         t-att-id="ptav.id"
                         t-att-value="ptav.id"
                         t-att-name="'ptal-' + this.props.id"
-                        t-att-checked="ptav.id === this.props.selected_attribute_value_id"
+                        t-att-checked="this.props.selected_attribute_value_ids.includes(ptav.id)"
                         t-on-change="updateSelectedPTAV"/>
                 </label>
             </li>
         </ul>
     </t>
+    <t t-name="saleProductConfigurator.ptav-multi" owl="1">
+         <ul t-attf-class="list-inline list-unstyled">
+            <li t-foreach="this.props.attribute_values" t-as="ptav" t-key="ptav.id"
+                class="list-inline-item mb-3">
+                <div class="form-check">
+                    <input
+                        type="checkbox"
+                        class="me-1"
+                        t-att-id="ptav.id"
+                        t-att-value="ptav.id"
+                        t-att-name="'ptal-' + this.props.id"
+                        t-att-checked="this.props.selected_attribute_value_ids.includes(ptav.id)"
+                        t-on-change="updateSelectedPTAV"/>
+                    <label
+                        class="col-form-label"
+                        t-att-for="ptav.id">
+                        <span t-out="ptav.name"/>
+                        <BadgeExtraPrice
+                            t-if="ptav.price_extra"
+                            price="ptav.price_extra"
+                            currencyId="this.env.currencyId"/>
+                    </label>
+                </div>
+            </li>
+        </ul>
+    </t>
 </templates>
diff --git a/addons/sale_product_configurator/static/src/js/sale_product_field.js b/addons/sale_product_configurator/static/src/js/sale_product_field.js
index d7c9e4a0c3a..b604e3c7fb3 100644
--- a/addons/sale_product_configurator/static/src/js/sale_product_field.js
+++ b/addons/sale_product_configurator/static/src/js/sale_product_field.js
@@ -12,7 +12,7 @@ async function applyProduct(record, product) {
     const contextRecords = [];
     for (const ptal of product.attribute_lines) {
         const selectedCustomPTAV = ptal.attribute_values.find(
-            ptav => ptav.is_custom && ptav.id === ptal.selected_attribute_value_id
+            ptav => ptav.is_custom && ptal.selected_attribute_value_ids.includes(ptav.id)
         );
         if (selectedCustomPTAV) {
             contextRecords.push({
@@ -27,7 +27,7 @@ async function applyProduct(record, product) {
 
     const noVariantPTAVIds = product.attribute_lines.filter(
         ptal => ptal.create_variant === "no_variant" && ptal.attribute_values.length > 1
-    ).map(ptal => ptal.selected_attribute_value_id);
+    ).flatMap(ptal => ptal.selected_attribute_value_ids);
 
     await Promise.all(proms);
     await record.update({
diff --git a/addons/website_sale/views/product_attribute_views.xml b/addons/website_sale/views/product_attribute_views.xml
index 3715edf0692..0069a7fba5d 100644
--- a/addons/website_sale/views/product_attribute_views.xml
+++ b/addons/website_sale/views/product_attribute_views.xml
@@ -6,9 +6,11 @@
         <field name="model">product.attribute</field>
         <field name="inherit_id" ref="product.product_attribute_view_form"/>
         <field name="arch" type="xml">
-            <field name="create_variant" position="after">
-                <field name="visibility" string="eCommerce Filter Visibility" widget="radio"/>
-            </field>
+            <group name="main_fields" position="inside">
+                <group name="ecommerce_main_fields">
+                    <field name="visibility" string="eCommerce Filter Visibility" widget="radio"/>
+                </group>
+            </group>
         </field>
     </record>
 
diff --git a/addons/website_sale_comparison/models/website_sale_comparison.py b/addons/website_sale_comparison/models/website_sale_comparison.py
index a74cd358b81..da57a332e55 100644
--- a/addons/website_sale_comparison/models/website_sale_comparison.py
+++ b/addons/website_sale_comparison/models/website_sale_comparison.py
@@ -20,9 +20,13 @@ class ProductAttribute(models.Model):
     _inherit = 'product.attribute'
     _order = 'category_id, sequence, id'
 
-    category_id = fields.Many2one('product.attribute.category', string="Category", index=True,
-                                  help="Set a category to regroup similar attributes under "
-                                  "the same section in the Comparison page of eCommerce")
+    category_id = fields.Many2one(
+        comodel_name='product.attribute.category',
+        string="eCommerce Category",
+        index=True,
+        help="Set a category to regroup similar attributes under the same section in the Comparison"
+             " page of eCommerce.",
+    )
 
 
 class ProductTemplateAttributeLine(models.Model):
diff --git a/addons/website_sale_comparison/views/website_sale_comparison_view.xml b/addons/website_sale_comparison/views/website_sale_comparison_view.xml
index e5ca824dfdf..1c95672bde3 100644
--- a/addons/website_sale_comparison/views/website_sale_comparison_view.xml
+++ b/addons/website_sale_comparison/views/website_sale_comparison_view.xml
@@ -45,12 +45,12 @@
     <record id="product_attribute_view_form" model="ir.ui.view">
         <field name="name">product.attribute.form.inherit</field>
         <field name="model">product.attribute</field>
-        <field name="inherit_id" ref="product.product_attribute_view_form"/>
+        <field name="inherit_id" ref="website_sale.product_attribute_view_form"/>
         <field name="priority" eval="8"/>
         <field name="arch" type="xml">
-            <field name='name' position='after'>
+            <group name="ecommerce_main_fields" position="inside">
                 <field name="category_id"/>
-            </field>
+            </group>
         </field>
     </record>