Simply the best and most comfortable semi-dry suit made. Comfort, warmth, and fit are guaranteed thanks to Extraflex Neoprene, the new lining in Thermal Fiber, and the ear Titex Master Scuba zipper, Embossed Supratex protects the knees, while the seat and shoulders are reinforced with Supratex. The back along the spinal cord has a PAD Protection and a roomy 3D zippered pocket on the leg to make this suit especially suitable for heavy duty use.