TUFS are a one-piece injection molded boot made entirely from BioLite and modeled after the Kids ADB. BioLite is an ecofriendlier EVA compound found on other popular XTRATUF styles like the ADB Sport and Riptide. TUFS are lightweight, flexible, 100% waterproof and still non-marking and slip-resistant like other XTRATUF footwear. On the inside, they have built in ridges at the front and back for easy grip when pulling them on and have a textured footbed for added traction and a secure fit. | XTRATUF TUFS Ankle Deck Boots | Size 8 Kids