Protect yourself from the elements and prepare for the run of your life with PUMA's newest dynamic trail shoe. They feature something called Better Foam, which is created with 50% bio-based sugarcane CMEVA. What that means is your feet feel cushioned and comfortable and you feel good knowing you're doing something good for the environment. With great grip, these shoes will keep you going over any terrain. Better Foam Xterra Wtr Running Shoes