95% Cotton, 5% Spandex Cotton/ Spandex Viet Nam Machine Wash Solids: 95% Cotton, 5% Spandex; Heathers: 71% Cotton, 24% Polyester, 5% Spandex Four pack of cotton-blend Boxer with ComfortFlex Waistband-briefs each featuring logo waistband and contoured pouch Fresh IQ advanced odor protection technology attacks odor-causing bacteria in your clothing to help you feel fresh all day Stretch cotton moves with you for all day comfort; Leg bands that won't ride up guaranteed Soft, stretchable comfort flex waistband moves with you and keeps its shape wash after wash Tag-free for itch-free comfort If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included.