O'Neill Men's Epic 3/2mm Back Zip Full Wetsuit, Black/Black/Black, Large Tall Ideal Value Driven Wetsuit; Perfect For Surfing, Diving, Paddle Sports, Lake Activities, And Beach Days Backzip System Provides Easy Entry And Exit With A Water Tight Seal Ultra Stretch Neoprene: Incredibly Soft Premium Material Has Superior Feel, Flexibility, And Elevates Performance Seams Are Blind Stitched And Triple Glued (GBS); Keeping Water Out And Increases Durability Of The Product Wind-Resistant FluidFlex Firewall Panels Provide Extra Insulation And Protection Against The Cold 3/2mm 100% UltraFlex Neoprene with FluidFlex (tm) Firewall Glued and Blindstitched Seam Construction, Strategic Seamless Paddle Zone LSD: Lumbar Seamless Design and Krypto Knee Padz Internal Thermo Chest Panel for increased insulation Double Double Super Seal Neck, Fully Adjustable and Watertight