$field = '<select name="' . esc_attr( $key ) . '" id="' . esc_attr( $args['id'] ) . '" class="country_to_state country_select ' . esc_attr( implode( ' ', $args['input_class'] ) ) . '" ' . implode( ' ', $custom_attributes ) . ' data-placeholder="' . esc_attr( $args['placeholder'] ? $args['placeholder'] : esc_attr__( 'Select a country / region&hellip;', 'woocommerce' ) ) . '"><option value="">' . esc_html__( 'Select a country / region&hellip;', 'woocommerce' ) . '</option>';