Exclusive Underwear Collection by Calvin Klein. Made by Calvin Klein.... more

The Calvin Klein Body Boost Trunk, from the Calvin Klein Tech Cool underwear collection, is a low-rise trunk that offers the benefit of male enhancement through a unique boost strap system. Made from ... more

The Calvin Klein Body Boost Butt Trunk, from the Calvin Klein mens underwear collection, is a classic trunk with a hot little secret. This Calvin Klein trunk features hidden butt support straps to giv... more

Modern fit men's trunk.... more

Slim fit, trunk-style boxer brief.... more