New in Box Calvin Klein Men's Cotton Stretch 3-Pack Boxer Brief. Color: Black. Size: Medium. Fabric: 95% Cotton and 5% Elastane. Care instructions: Wash in cold water. Imported COTTON STRETCH: Spun in pure, premium cotton yarn with a hint of Spandex fibers, Calvin Klein’s signature men’s underwear wicks away moisture to keep you cool and dry. SUPPORT plus COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear. SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh. DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials. CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.