O'Neill's new XDS-Air Firewall is more insulating and water wicking than ever. For 2010 O'Neill have put this state-of-the-art insulation in the chest, back and in the lower core panels. UltraFlex XDS arms, shoulders, and lower leg add flex and durability to the right places. Psychofreak takes you beyond warm, beyond flexible and beyond your imagination.Chest and back: SL/Smooth SkinUltraFlex XDS-Air FirewallFront Thigh and Hips: UltraFlex XDS Air FirewallArm and Lower Leg: UltraFlex XDSKnee: KryptoNeck: GlideskinSuper Minimal Seam DesignContortionist Seamless ShoulderStrategic Seamless oaddle ZonesLSD: Lumar Seamles DesignDouble Fliud Seam Weld (Stitchless)Patented Z.E.N. Zip Closure System with PulloverBarrier 2 / Double Superseal Neck / DrainholePlasma Wrist and Ankle SealsExternal key Pocket with LoopRedesigned Hand Cuffs