Based on the world's first Ultra-Light D9 Dry Suit concept from Waterproof,the D9X Extended Breathable Dry Suit features some technical improvements. Asa leisure diver, you can always decide not to dive if environmental or weatherissues are of concern or if you don't want to abuse or risk your equipment.But for some divers this is not always a choice. To meet their need forequipment that has extra reinforcement, Waterproof R&D redesigned the standardD9 suit and found a way to strengthen some areas without jeopardizing the mostimportant feature of the suit: The Ultra-Light Concept. The suit featuresnewly developed stronger laminated material, same as used in Waterproofs EX2suits, extra reinforcement from the elbows to the zip-off neoprene warm cuffs,which are designed to accept readily any dry glove system. Extra reinforcedlower back and knees, lightweight pockets on both legs (featuring two cordloops on each) and delivered with XLITE Soft Boots. Yes, the D9X ExtendedBreathable Dry Suit weighs slightly more than the exceptionally Ultra-Lightstandard D9 Dry Suit, but Waterproof knows that most divers are willing tocarry a little extra weight in exchange for added performance. Armreinforcements - double layers of abrasion resistance Cordura fabric. CorduraNylon Quad-Lam -AquaMax 330 denier Cordura Nylon. Breathable. Double LegPockets - With double cord loops, easy grip and drainage mesh. Flexible DryZipper - Light and flexible diagonal front