We've cracked the code with this one. More flexible than your yoga teacher and hotter than her, too. With Hyperstretch II Neoprene throughout and a short YKK zipper, the line between summer and winter has been blurred yet again. Imported. €¢ 3mm Hyperstretch II Neoprene body €¢ 2mm Hyperstretch II Neoprene arms €¢ 3mm Vaporstretch mesh chest and back panels €¢ Inner gusset panel HFT Heating System €¢ GBS (glued and blindstiched) seam seal with Flexmax seal seam taping €¢ Cypher seal wrist and ankle cuffs €¢ Cyberfuse kneepads €¢ Hydroshield water barrier with key pocket €¢ Hydrowrap neck closure €¢ Glide skin neck seal €¢ Short YKK back zip