The Quantum Stretch Jumpsuit is made from 7 mm 4-way super-stretch neoprene for maximum comfort. The seams are glued and blind stitched inside and out for durability. The suit features a Glide Skin seal at the neck, wrists, and ankles, as well as a YKK #10-Brass zipper with a low profile water sealing design to keep you warm. AKONA's zipper design includes dual rubber strips to create a water resistant closure when the zipper is closed. The low profile zipper flap further seals and secures the zipper in its closed position. The reinforced pull loop at the base of the zipper allows for easy self-donning of the suit. The AKONA glide-skin neck, wrist, and ankle seals minimize water entry and flushing of the suit, making it easy to enter and exit the suit with its slick surface and flexible properties. The knee pads on this suit are uniquely designed and provide exceptional strength and durability. Unlike other suits, these knee pads are fully flexible and have a hydrodynamic low profile. The AKONA Grab Shoulder material provides superior wear and scuff protection, and the Grab Shoulders create a snug and movement-free fit, preventing the BCD from shifting. The unique pattern of the Grab Shoulder material also prevents excessive stretching of the suit when hung to dry. The Quantum Stretch 3 mm Jumpsuit is available in 9 sizes from SM to 5XL and comes with a 24-month limited warranty.