90% Polyester, 10% Spandex Imported Pull On closure Silky, comfortable, and stretchy material delivering a custom fit Suitable height and stretchy mock neck to keep the neck warm without tight or restricting Cozy fleece lining gently wraps the body, as a barrier between the cold air, helping retain heat Sufficient stretch supports free movement, improves agility, no tugging or tightness Great for as a base layer to wear under clothes