Wearing a neoprene vest independently or as a layer can significantly impact your over all warmth. This vest is made popular by sports enthusiast such as divers, kayakers, SUP, wakeboarders, swimmers and more. This vest is often worn over a rashguard, neoprene shirt, lycra skin suit or a lycra rashguard. This takes the chill out of the water. The sleeveless cut leaves arms free for complete mobility and makes the Sport Vest a natural cross over garment for paddle sports, skiing and watercraft use. Light and easy to pack, the Sport Vest is also durable, thanks to quality neoprene and flatlock seam construction. See the size chart for perfect fit.