Boss Men's Black Kaito1 Slim Fit Trousers in Size 40 R, Sports Direct. Tailored for a streamlined look, these BOSS Kaito1 Slim Fit Trousers deliver sharp lines and all-day comfort. Designed with a modern cut, they transition seamlessly from business meetings to smart-casual settings. Product Highlights • Slim fit profile creates a contemporary look • Designed for comfort throughout extended wear • Subtle BOSS detailing adds recognisable brandingLooking for alternatives to stores like JD Sports, eBay, SHEIN, ASOS, Next, Best Choice UK, Very, Decathlon UK, Argos, schuh, Temu, BuyBetter, or Nike Official? Discover our unique selection.