The name AquaFlex has become synonymous the world over for stretch, comfort, and warmth. This line of wetsuits represents the best value and quality on the market today. All AquaFlex suits are made of four-way stretch neoprene, canadian seals on 5mm and 7mm styles to limit water entry and provide extra warmth. Used throughout the whole suit, AquaLungs AquaFlex neoprene has three times the stretch of standard neoprene. 4-way stretch neoprene (petroleum free) for a maximum range of motion Canadian cuff for the 7mm and 5mm Semi dry zipper system Powertex knee protection