|Calvin Klein trunks underwear has a streamlined, body-defining fit that has a shorter leg than boxer briefs. The exposed elastic waistbands feature the famous logo which is your assurance of great quality and a fashionable look. Double layer contour pouches offer improved support and comfort, with open, right-side entries on selected styles. Rear styling varies from seamless to center seam and yoked for a close fit. Calvin Klein men's underwear of silky microfiber polyester or nylon blended with spandex offers a close, comfortable fit for everyday comfort. Multi-pack trunks are popular, especially in 100% cotton and cotton/spandex blends. For athletic performance, the Air FX low rise trunk features curved ergonomic seams on the sides of the legs for a sleek fit. Calvin Klein trunk underwear comes in time-honored white, black and fashion colors, in sizes S-XL.