Tiki Pro 4mm Wetsuit Hood When it comes to keeping warm in the water in the winter months t is essential to have a good wetsuit hood and it doesn\'t get much warmer than the Tiki 4mm Pro wetsuit hood. It benefits from super extend neoprene which is super flexible. The thermal dry lining retains your body heat so that you stay warmer for longer and the less heat you lose from your head the warmer your body will stay. FEATURES 4mm Neoprene Extend Super Stretch Neoprene Dry Lining Thermal Lining