Conquer the ColdCold water won't slow you down; neither should your wetsuit. The Thermal Reaction is built for athletes who demand speed, agility, and warmth in equal measure. Engineered with premium Yamamoto neoprene and a mid-weight zirconium jersey lining, the Thermal Reaction delivers fast-drying insulation, exceptional flexibility, and the thermal protection you need to push your limits in frigid conditions.Designed for total freedom in your stroke, the Thermal Reaction features our unique single-piece shoulder panel; seamless, unrestricted, and built for fluid, natural movement. Ultra-flexible neoprene in the arms eliminates resistance, ensuring pure power through every phase of your swim. When the water temperature drops, the Thermal Reaction keeps you going, through every chilling training session and cold water plunge at race start. In the right gear, it's easy to conquer the cold.