Warm and Protective: Our 3mm neoprene diving hood keeps your head nice and toasty warm, prevent rash and provide protection.You can enjoy the fantastic moments with Acsergery no worries. And the water cap keeps your head warm when you paddle boarding in cool water. Fit snug, dry quickly. Perfect for all water sports .The diving cap provides UV protection perfectly, keep you from the harmful sun rays when you have a enjoy, and protects your head from hurt by sea lice, jellies, coral, ect .Adjustable chin hook & Loop of the swim cap dual locking hook-and-loop mechanism ensures the chin strap hook and loop fastener stays securely in place. The adjustable diving cap is one size that suitable for men and women. Easy peel-apart for quick access .The neoprene diving hood ensures that your head fully protected from the coldest winds , waters, jellyfish or sharp rocks whether surfing, diving, open sea swimming, scuba, wakeboarding, canoeing, kayaking, enjoying boardsports or sailing .