The perfect winter boot for the little one. The UGG Boo is a kids' winter boot made of soft suede fabric with plush sheepskin lining for a super-soft feel and wearing comfort. A fold-down cuff provides versatility while a reinforced heel and toe add durability. Sizes: S = toddler shoe size 1-3 (0-8 months), M = toddler shoe size 4-5 (9-16 months), L = toddler shoe size 6-7 (17-24 months).