Calvin Klein Mens Sleepwear Bottoms

Clean lines. Iconic waistbands. Effortless confidence. Calvin Klein has been redefining modern essentials since 1968, when designer Calvin Klein and business partner Barry Schwartz launched what would become one of fashion’s most influential brands. Headquartered in New York City, the label rose to global prominence in the '80s, thanks to its boundary-breaking denim and underwear campaigns — and it hasn’t looked back since.

At END., you’ll find a curated edit of Calvin Klein staples for men, from breathable cotton trunks and relaxed sleepwear to easygoing tees you’ll reach for daily. Think multi-packs of the brand’s most iconic pieces, each one stamped with that unmistakable CK logo. Whether you’re updating your top drawer or looking for everyday base layers that deliver on both comfort and style, Calvin Klein delivers the essentials, guaranteed.