About this item. 3mm premium smooth neoprene which is eco-friendly, high-elastic, has a remarkable thermal insulation performance,prevents body temperature loss, soft and comfortable,elastic,Wear-resistant,Quick-drying,UV-resistant.. With sleeveless big cuff design, can effectively avoid skin friction or abrasion caused by too small and tight cuff when you are in some situations required swinging arms sharply, such as swimming, surfing, boating, and drifting. Flat-lock stitching is comfortable enough for long-time wear.. meet the needs of different sports scenes; the body is lengthened to ensure a better waist warmth effect, specially designed for beach, snorkeling, swimming, scuba, diving, surfing, sailing, kayaking, canoeing and other water sports.. Comfort and Protection: Our neoprene wetsuit top with sleeveless design can effectively avoid skin friction or abrasion while you are swinging your arms repeatably. Flat-lock stitched seams lay flat to prevent chafing especially comfortable for long-time wearing..