Calvin Klein 4 Pack Microfiber Low Rise Trunk Black Men's Underwear NP24460331 Brand New with Box. 100% Authentic. Designed for maximum comfort with updated, modern styling. These micro stretch low rise trunks come in a 4-pack and are made with silky microfiber, a Calvin Klein Underwear repeating logo elastic waistband and a contoured pouch for quick-dry, all day performance. Silky soft microfiber for maximum comfort and enhanced movement Flexible stretch Calvin Klein Underwear logo waistband with excellent shape retention Wicking fabric technology keeps you cool and dry Supportive pouch with contoured seams for a sleek fit Comes in a 4-pack Machine wash 88% polyester 12% elastane Imported