Bare 5mm Elastek Women's Full Suit Wetsuit, Black Red - 3XL-18 100% Elastek Super-Stretch stretches up to 200% more than standard neoprene Elastek utilizes the latest in neoprene laminates to provide uninhibited flexibility and stretch Knee pads provide exceptional grip and durability Full-stretch neoprene laminates allow for total range of motion while maintaining a soft, supple feel against your skin GLIDESEAL Neck seal with adjustable comfort collar