The UGG Erin baby Blue bootie is made from the highest quality plush sheepskin  With a simple hook-and-loop closure, it goes on and comes off easily and comfortably. Make your little one feel just as pampered as you in a pair of UGG baby booties.
◦Genuine Grade A sheepskin.
◦Soft sole for comfort and indoor use.
Sizing recommendations:
◦Small = Infant shoe sizes 1 to 3 (0 - 8 months)
◦Medium = Infant shoe sizes 4 to 5 (9 - 16 months)
◦Large = Infant shoe sizes 6 to 7 (17 - 24 months)