This is the Henderson Men's 5mm Aqualock Quikdry Wetsuit Scuba Diving Wetsuit or Jumpsuit Features: Henderson Men's 5mm Aqua Lock Quick-Dry Jumpsuit: Completely Redesigned Henderson Aqua Lock Wetsuit Series Feature Rich Wetsuit Line Designed for Divers Demanding the Very Best Equipment Aqua Lock Remains Henderson's Most Advanced Wetsuit Enhanced 250% Stretch 7mm Neoprene Rubber Henderson's New Quick-Dry interior: Revolutionary Hydrophobic Lining Significantly Accelerate Speed of Drying Dries in Just a Few Minutes Not Hours Super Soft & Adds Luxurious Feel to Interior of Wetsuit Limits Water Entry & Movement Thru-Out Wetsuit Keeping You Warmer Longer Revolutionary Wetsuit System: Zipper-Less Sealing System Interlocking Wrist, Ankle and Neck Openings Design First of Its Kind, Offer Interlocking Wetsuit Seals Designed Specifically to Mate with Interlocking Aqua Lock Hoods, Boots & Gloves Nearly Impenetrable Seal Minimizes Cold Water Entry into Aqua Loc Ensemble! Liquid Taped Aqua Lock Seams Double Glued & Blind Stitched Aquasilk Exterior Laminate PK G-Lock Water Resistant Rear Zipper Entry Zipper Tab Leash for Easy Self Donning Duratex Knee Pads Adjustable Collar The Aqua Lock System begins with the core jumpsuit. One of the most notable visual features on the suit is the liquid tape Aqua Lock seams. Every seam on the suits is first double glued and blind stitched inside and out. Then the outer seam is coated with a special waterproof Aqua Lock liquid tape barrier which seals the seam from water entry and helps protect the stitching from damage and unraveling. The 5mm and 7mm core jumpsuits offer special Aqua Lock wrist and ankle cuffs which have been designed to mate with specially designed Aqua Lock boots, gloves and hood. The Aqua Lock cuffs feature a soft and ultra-stretchy skin neoprene inner lining which mates to specially designed silicone seals inside the boots and gloves. 3mm Suits also mate with Aqua Lock accessories but the double locking wrist and ankles have been removed since they are not required in warmer water temps where 3mm suits are commonly utilized. "