Men's long sleeve 1.5mm 50/50 thermal rashguard - Hyperflex

Want some extra warmth on top of (or under) your wetsuit for the colder days? Want something lighter than the whole wetsuit for the hotter days, when you still want protection from the sun, and some core warmth when you get wet? This shirt will do both. It combines the warmth of polyolefin with the thickness and core warmth of neoprene. 1.5MM neoprene on the chest and back for core warmth and extra rash protection against board/harness, polyolefin on the shoulders, neck and underarms, for complete mobility. This shirt can be worn alone as a warm water core warmer/surf jacket or layered over/under a wetsuit for added thermal insulation. Manufacturer's website: https://hyperflexusa.com/product/long-sleeve-5050-polyolefin/ Reference: XP117UN-01