As Aqualungs premium drysuit hood, the HeatWave+ exceeds expectations. You will find exponential comfort originating from a selection of quality materials and use of perfected patterns. Bibbed design tucks in under wetsuit collar for reduced water transfer Lined with Glideskin and Heater Core Fleece for ultimate comfort, wet or dry Combination of 7mm & 5mm neoprene offers choice of desired cold water insulation Face panel left unbound for custom trimming Air Release System vents excess air at the top of the head Triple glued & blind stitched construction keeps water from penetrating seams Hanging loop located at top for easy drying