What you want is to add the attributes “max” and “data_max” to the input in main-product.liquid like this:
```
<input
class="quantity__input"
type="number"
name="quantity"
id="Quantity-{{ section.id }}"
data-cart-quantity="{{ cart_qty }}"
data-min="{{ product.selected_or_first_available_variant.quantity_rule.min }}"
min="{{ product.selected_or_first_available_variant.quantity_rule.min }}"
...
**data-max="{{product.selected_or_first_available_variant.inventory_quantity}}"**
**max="{{product.selected_or_first_available_variant.inventory_quantity}}"**
...
```