Big Boy Bamboo Men's Crew Neck with Pocket Bamboo Short-Sleeve T-Shirt FABRIC BLEND: 70% viscose from organic bamboo, 30% organic cotton SO EASY TO CARE FOR: Machine wash cold, hang dry EXTENDED MEN'S SIZE: Designed specifically for the unique needs of plus-size extra large dudes. LOOK YOUR BEST: Ridiculously comfortable with a luscious, silky feel unique to bamboo-derived textiles. FEEL YOUR BEST: Lightweight, breathable bamboo-derived fabric can help control sweat & body odor. Comfortable in most weather conditions. EXTREMELY COMFORTABLE: Silky soft, drapes well on your body (doesn't cling) and feels cooler than cotton in hot weather. PERFECT FOR ANY SITUATION: Stylish enough to pull off a business-casual look, durable enough to be a work shirt.