The Sharkskin Chillproof Short Sleeve Climate Control Vest for Men is perfect worn as stand alone garments for a variety of activities, although they are still suitable for use under a wetsuit. The high cut yet comfortable neck has a soft seal to prevent water from waves and wind entering the garment. The Zippered front allows you to adjust and control the heating effect of the sharkskin. The vest also has reflective colour to keep you cool. Short Sleeves provide additional protection from cold and sun while preventing chaffing around the shoulders and arms especially when a personal floatation device (lifejacket) is worn.