Wetsuit in very flexible neoprene. Quadra flex neoprene in shoulders and sleeves for maximum mobility. 3 mm material thickness in the body and 2 mm in the sleeves. Double nylon in the lower body and sleeves for increased wear resistance, and single nylon over the chest and back for the best thermal insulation. Velcro collar with soft "smooth-skin" inside, Internal key pocket, strong zipper. Construction: Flatlock seam
