The Sharkskin Chillproof 1-piece full suit provides full body protection from the cold, sun and marine stingers. Designed to completely replace your wetsuit in warmer waters or it can be used under an existing wetsuit for extra warmth in colder waters. It has 4-way stretch for comfort and is less buoyant than neoprene so you need less weight, making you way more comfortable when scuba diving or snorkelling. Note that this garment has a neoprene rubber collar to create a flexible neck seal. Chillproof is an aquatic specific windchill proof, 3-layer composite material with the thermal properties of a 2.5 to 3mm neoprene wetsuit but without many of the drawbacks of traditional wetsuits. Chillproof can be worn under a wetsuit for extra warmth and enhanced wind protection. Chillproof can also be worn by itself as the perfect watersports thermal wear or layered with other Sharkskin garments for extra warmth and insulation. It is ideal for scuba diving and snorkelling, jet skiing, paddle watersports, board watersports, wind watersports, sailing and many other watersports.