* Y40 (Yamamoto 40 cell neoprene rubber)* Yamamoto NANO-SCS: Provides lower surface friction than SCS* Maximotion+: Continuous and extensive 1.5mm neoprene panels for supreme flexibility for your stroke.* Fuse Neck: Double sided SCS collar construction for a water tight neck and extreme comfort.* Revo Zipper: Reversed zipper construction, easy to fit and allows a fast transition from swim to bike.* Super Sealed Cuff: Improved water tightness of the cuff. Provides a more streamlined wrist and arm profile.