Hyperflex Wetsuits Men's Voodoo 6/5/4mm Hooded Front Zip Fullsuit Neoprene Atomic Foam - Super Stretch Neoprene infused with a higher count of air cells achieving a warmer insulation rating for the same thickness and weight AQ6 Thermal Fabric is a soft, thin fibrous fabric which internally lines the suit increasing warmth, comfort and quick dry properties Cocoon Entry Point & Closure System - wide open design allowing easy entry/exit while also sealing water out with an anti-flush head gusset panel Fusion Weld Sealed Seams a liquid sealant which forms a molecular bond preventing water exchange, while increasing seam strength and durability GBS Seams -double-glued & blind-stitched using a single-needle which does not puncture a hole all the way through the neoprene limiting water exchange.All critical seam intersections are strengthened with heat-applied reinforcement tabs.