Scubapro Men's Definition Steamer 3mm Wetsuit Nylon 2-sided X-Foam neoprene formula for better health, I-Safe strap keeps computer securely attached with HD knee pads Body Map System uses specific materials in body panels for extreme warmth and comfort Infrared reflecting heat shield technology on the interior torso and plush lining on the non stretch panels Abrasion resistant StretchTec side panels for durability, angled rear entry zipper for increased flexibility and comfort Seals and zippers on neck collar, wrists and ankles make dressing and undressing exceptionally comfortable and easy.