bootstrap_barrio-5.1.3/templates/commerce/commerce-cart-flyout/commerce-cart-flyout-add-to-cart-variation-select.html.twig

<select class="custom-select">
  <% _.each(variations, function(variation, key) { %>
    <option value="<%= variation.uuid %>"><%= variation.title %></option>
  <% }) %>
</select>