Aqua Lung Men's Dynaflex 5.5mm JumpsuitThis back zipped wetsuit serves the classic segment of a base layer with a feature rich package. Thanks to the new 4 way super stretch neoprene using Ultraspan fabric, double water seal cuffs and a semi sealed zipper closure, Dynaflex provides a perfect fit with maximum comfort and warmth. To make life easier before and after diving, the neck opens using a zipper, this is an amazing feature when a diver has to sit and wait for the water entry. A