shell suit
From Longman Dictionary of Contemporary EnglishRelated topics: Clothesshell 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 legsExamples from the Corpusshell 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.