Constructed from nylon and patent leather, the Trailgrip Puffer sneakers feature a waterproof GORE-TEX® membrane and a textured water-repellent toe cap. An EVA midsole provides flexibility and lightness, while the Vibram MEGAGRIP tread offers grip on wet and dry surfaces. Ortho Lite® insoles provide breathability and cushioning. nylon and patent leather mesh lining waterproof membrane lining waterproof GORE-TEX® membrane Ortho Lite® insole carbon fibre between midsole and tread Vibram MEGAGRIP rubber tread lace-up fastening