THERMAL REACTION (MEN'S) - 2021The Thermal Reaction is a variation of our Reaction wetsuit, outfitted for colder temperatures with a thermal liner called Zirconium. This unique jersey absorbs less water, offers excellent flexibility and additional protection from the elements. Key Features: Reactive Stretch Technology (RST): thinner neoprene around the back and shoulders produce great mobility and reach from the shoulders, reducing fatigue S Flex Side Panels: improve the ease of