High-Stretch Neoprene Blend generates extreme levels of stretch, comfort and mobility; Anatomically Correct Pattern for outstanding three-dimensional fit throughout the entire suit; Low-profile collar tab with Velcro for less bulk and more comfort; Integrated suit saver that protects your suit from the Velcro collar tab snagging on your wetsuit; Extra-long heavy-duty back zipper for easy donning and doffing; Armor-flex knee pads extends the life of the suit in the high-wear area while still providing full stretch performance of the neoprene