Men’s trunks Men's underwear made from nylon / elastane Machine wash Imported Tagless Flyless Calvin Klein underwear style U2716F Say “hello” to one of Calvin Klein's most popular trunks. Made from a blend of soft nylon and stretchy elastane, the Calvin Klein Steel Micro Trunks provide a perfect fit. Designed in Calvin Klein's exclusive Dream Blue tone, these sexy men's trunks feature a contour pouch that keeps you in place and provides supportive lift. A center back seam on seat provides better definition of your buttocks. A crotch gusset inseam helps the Calvin Klein underwear conform to your body for maximum comfort. Sleek, exposed microfiber waistband chafes less than exposed elastic and features a bold Calvin Klein logo.