Kids' Classic Ultra Mini Boot UGG Kids' Classic Ultra Mini Classic ultra mini boots Kids' Classic Ultra Mini Boot UGG. The iconic boot has been scaled down in size, but not in style. The Classic Ultra Mini features a lower shaft height to add easy on off and enhanced versatility. Pre treated to keep it looking better for longer, this Classic features everything kids love about the original: signature sheepskin lining, an ultra soft UGGplush insole, and a flexible, lightweight sole made for all day play. Protected: Post Applied Treatment Topically applied water repellency treatment 17mm Twinface sheepskin upper Asymmetrical topline, Overlock stitch detailing on seams, Rear pull tab, Suede heel counter 17mm sheepskin lining 17mm UGGplush 80% upcycled wool, 20% lyocell insole or 17mm UGGplush 60% upcycled wool, 40% lyocell insole Treadlite by UGG outsole for comfort or SugarSole EVA outsole Textile binding made from 100% recycled polyester fibers 3. 5" shaft height Woven label with UGG logo ITEM # 1130750KCHE