Kid&#39;s Sno-Mocs, Silver, Toddler Nylon Rubber sole Infant sole 5", Toddler 5 3/4", Toddler+ 6.5" Thick 17 ounce fleece linings for warmth and comfort Velcro and elastic closures insure these booties cannot be kicked off Rugged "gripper" soles Waterproof breathable fabric