From Longman Dictionary of Contemporary Englishpinstripe suitpinstripe suita suit made from cloth with a pinstripe pattern, worn especially by business people a navy-blue pinstripe suit → pinstripe
Examples from the Corpus
pinstripe suit• The effect is similar to dressing a tall man in a pinstripe suit - it simply accentuates the length!• The commander sat in a pinstripe suit behind his desk, an island of teak in a sea of purple carpet.• Alternatively you could pick up a pinstripe suit from tried and trusted Marks & Spencer.• Opposite page Black and yellow silk pinstripe suit, £970; mustard wool sweater, £477; both by Gianni Versace. 