From Longman Dictionary of Contemporary Englishshell suitˈshell suit noun [countable] British English DCCa light brightly coloured piece of clothing consisting of trousers and a jacket that fit tightly at the wrists and at the bottom of the legs
Examples from the Corpus
shell suit• Even the humble sparkler can cause horrific injuries when combined with a highly flammable shell suit.• He was wearing a blue and yellow shell suit top and light, almost bleached jeans. 