This dive suit is made from 3-millimeter premium neoprene, which provides a versatile balance of warmth and mobility for use in underwater conditions. Its full-body coverage design can keep you warm and prevent sunburn. It is perfect for diving, snorkeling, surfing, swimming and other water sports. Features: Size: S=Chest 34.6", Waist 29.9" / M=Chest 36.2", Waist 31.5" / L=Chest 37.8", Waist 33.1" / XL=Chest 39.4", Waist 34.6" / XXL=Chest 40.9", Waist 36.2" (Optional) Made of 3mm neoprene and nylon material, soft and warm. Full body design provides conservation against UV rays and water irritants. Flat-lock stitching is comfortable enough for all-day wear. Extra long leash and back zipper for comfort and convenience. Smooth seals at the cuffs and leg openings seal out water. Great for diving, snorkeling, swimming, surfing. Specifications: Material: Neoprene & Nylon Size: S=Chest 34.6", Waist 29.9" / M=Chest 36.2", Waist 31.5" / L=Chest 37.8", Waist 33.1" / XL=Chest 39.4", Waist 34.6" / XXL=Chest 40.9", Waist 36.2" (Optional) Size Details: Size Chest Waist Hip Suggest Height Suggest Weight cm in cm in cm in cm in kg lbs S 88 34.6 76 29.9 82 32.3 165-170 65.0-66.9 50-60 110.2-132.3 M 92 36.2 80 31.5 86 33.9 168-175 66.9-68.9 60-68 132.3-150.0 L 96 37.8 84 33.1 90 35.4 173-178 68.1-70.1 65-75 143.3-165.3 XL 100 39.4 88 34.6 94 37.0 178-185