Fall 2011100% super Stretch (40% UltraFlex DS / 60% FluidFlex™) Single Fluid Seam Weld Modular closure system* ultraflex Firewall Measurably Lighter, Warmer and More Flexible Body: 40% UltraFlex, 60% FluidFlex™ Chest: Smooth Skin/Firewall Back: Smooth Skin Knee: Kevlar with D-foam Neck Facing: Glideskin Exterior Fluid Seam Weld Krypto Knee Padz External Key Pocket with Loop