New Tusa WaterProof Unisex BodyTec Pants (2X-Large) with 260 Gram Polyester Spandex for Drysuit Undergarment, Surface Wear or Sleepwear at the Base Camp/FBM 260 gram polyester/spandex fleece keeps you warm even when wet Draw cord waist on pants Equipped with foot loops Great for moderate temperature.... use by itself or combine with Waterproof's WarmTec undergarment for extreme protection 90% Polyester