BBB ArcticDuty Overshoes - Designed to protect in all winter conditions. - Ergonomic 3D-panel design provides a perfect fit. - Outside panel: 4.2 mm waterproof Sharkskin neoprene. - Inside and front panel: 4,5 mm hydrophobic multi stretch nylon neoprene combines optimum protection with excellent fit. - Glued seams combined with waterproof tape prevent water leakage. - Reflective reversed zipper for the best performance and visibility. - Neoprene flap behind zipper. - Soft rubber Velcro strap for a secure fit and zipper protection. - Extra tough and durable rubber reinforced nose and heel part.