Calvin Klein Pro Rib Sport Brief

Pro Rib Sport Brief. Performance stretch cotton provides support and ultimate comfort. Keeps skin cool and dry, perfect for an active lifestyle. Logo waistband. 95% cotton / 5% Lycra® elastane. Calvin Klein introduces Pro Rib underwear for men. The advantage of performance fabric now in comfortable cotton. Pro Rib is supportive yet comfortable. Performace cotton with iconic red logo waistband. Nano technology keeps skin cool and dry. The natural feel of cotton with moisture management properties - a key fabrication for an active lifestyle.