Calvin Klein Modern Cotton Stretch 3-Pack Trunks, in Black, Rusted Root burgundy, and Rock Ridge grey. These are a great-value 3-pack featuring a Pouch front and Organic cotton. The striking Calvin Klein Modern Cotton logo waistband is in contrasting white. Fabric Composition: 57% Organic Cotton / 38% Modal / 5% Elastane. MPN: nb3963a-pt1. This collection at Boxers and Briefs contains only the highest quality Calvin Klein Mens Underwear. The Calvin Klein Modern Cotton underwear range is one of our most popular, now using certified Organic Cotton. In this range, we have this great 3-pack of Calvin Klein Boxer Trunks, in Black/Grey/Burgundy, with contrasting white waistbands, and available in all sizes from Small to 4XL. Calvin Klein Men's Underwear size guide: Small = 28-30 inch waist, Medium = 32-34, Large = 34-36, X-Large = 36-38, XX-Large = 38-40, 3XL = 40-42, 4XL = 42-44. Experience breathable comfort and a sporty look perfect for everyday wear with the Calvin Klein signature elastic waistband. These boxer trunks are cut from a soft cotton with enough stretch to ensure a superior fit, featuring a cotton stretch blend and the iconic Calvin Klein signature elastic waistband. Style Reference - 000NB3963APT1.