Hanes Big Boys' Short Sleeve X-Temp Performance Tee Pack of 3 60% Cotton, 40% Polyester Imported Machine Wash X-temp technology is designed to adapt to your body temperature and activity to keep you cool and dry Ultra-soft ring-spun cotton feels great against your skin Moisture wicking fabric keeps you cool 40+ UPF rating for UV protection Black satin label easily removed for tag-free comfort