Flexmeter Double Sided Wristguard Glove Insert: thin Hydrotex membrane, light and resistant guaranteeing sweat elimination and total impermeability. Insulation: 100% Fiber fill Exterior: 70% polyurethane, 30% polyethylene AIR FLOW SYSTEM: ventilation to eliminate dampness Splints: a dorsal and a palm thermoplastic splint in Hytrel (Du PONT). Perfect stability in any temperature