Entire suit made from 5mm 4-way super-stretch neoprene for extreme comfort. Glued and blind stitched inside and out. Glide skin seal at neck, wrists & ankles. YKK #10 Brass zipper. Low profile water sealing zipper design. ZIPPER: YKK #10 brass zipper. Our unique zipper design utilizes dual rubber strips to additionally seal the zipper opening when closed, creating a water resistant closure. In addition, our low profile zipper flap folds over a closed zipper to further seal and secure the zipper in its closed position. The reinforced pull loop at the base of the zipper makes self-donning of the suit fast and easy. GLIDESKIN: The new AKONA glide-skin neck, wrist and ankle seals minimize water entry and flushing of the suit. The neck, wrists and ankles of these AKONA wetsuits are flush-cut for this purpose. The extremely slick surface and flexible properties of the glide-skin material enable the wearer to enter and exit the suit with ease.