Добавить обертку div для изображений на странице Archive для катоваров

В функици

// Add the opening div to the img
function add_img_wrapper_start() {
    echo '<div class="archive-img-wrap">';
}
add_action( 'woocommerce_before_shop_loop_item_title', 'add_img_wrapper_start', 5, 2 );

// Close the div that we just added
function add_img_wrapper_close() {
    echo '</div>';
}
add_action( 'woocommerce_before_shop_loop_item_title', 'add_img_wrapper_close', 12, 2 );

или

/**
 * Add Image Wrapper
 */

remove_action( 'woocommerce_before_shop_loop_item_title', 'woocommerce_template_loop_product_thumbnail', 10);
add_action( 'woocommerce_before_shop_loop_item_title', 'woocommerce_template_loop_product_thumbnail', 10);

if ( ! function_exists( 'woocommerce_template_loop_product_thumbnail' ) ) {
    function woocommerce_template_loop_product_thumbnail() {
        echo woocommerce_get_product_thumbnail();
    } 
}
if ( ! function_exists( 'woocommerce_get_product_thumbnail' ) ) {   
    function woocommerce_get_product_thumbnail( $size = 'shop_catalog', $placeholder_width = 0, $placeholder_height = 0  ) {
        global $post, $woocommerce;
        $output = '<div class="imagewrapper">';

        if ( has_post_thumbnail() ) {               
            $output .= get_the_post_thumbnail( $post->ID, $size );              
        }                       
        $output .= '</div>';
        return $output;
    }
}