Sizing in shoe size:

Infant: 0-3 

Extra Small: 12-14cm, 4-6 

Toddler Small: 14-16cm, 7-10

Medium: 16-18cm, 10-13 

Infant/XXS, Extra Small, Small + Medium have logo grips on the bottom of the feet

Our best recommendation to care for all your socks is to wash them in cold water with like colored items with mild detergent and dry on low.