100% waterproof 3.5 mm stretch insulating neoprene upper. Expandable upper for additional adjustment with additional room in the thigh. 1000G Thinsulate Ultra Insulation. Puncture and abrasion resistance from LaCrosse Brush Tuff bi-directional material. Buckled shoulder straps, can be used as a belt when folded down. PU protective coating on knees and seat. Top-loading pocket, call holder, and hand warmer provide ample accessible storage.