More informationDesigned for all-weather winter protection. Ergonomic 3D panels for a perfect fit. Outer panel: 4. 2mm waterproof Sharkskin neoprene. Inner and front panels: Water-repellent multi-stretch nylon neoprene, combining optimum protection and a good fit. Seams protected by waterproof tape and thermobonding for total waterproofing.Rubber strap with velcro underneath for a perfect fit. High-quality YKK zipper. Neoprene flap behind the zip. Rubber velcro strap for a secure hold and zipper protection. Heavy-duty rubber reinforcements on toe and heel. . Gama: 39/40