Waterproof H2 5/10mm Sandwich Venting HoodDesigned for full face mask users in scuba diving and diving gear setups, the Waterproof H2 5 10mm Sandwich Venting Hood provides warmth and protection in extreme conditions. The 10mm double layered neoprene in critical heat loss areas delivers targeted insulation while maintaining flexibility for comfortable movement underwater. The hood incorporates a Sandwich Face Seal and Glideskin seals at the neck and face to create a secure, watertight fit