Hanes Men"s X-Temp Thermal Underwear Henley: * 100% polyester * Crew neck * 3 button placket * Flat No Rub Seams * Soft Waffle Thermal Fabric * Shrinkage Controlled * Comfortable Rib Knit Cuffs * Sturdy Seam Construction * Snug fitting - buy a size large for a looser fit * Machine wash cold