When trying to decide between two sizes, choose the larger size for a better fit.

SizeShoe Size
Crew One Size4-10
Knee High One Size4-10
Over the Knee One Size4-10
Slipper Size 9-114-10
Slipper Small/Medium5.5-7.5
Slipper Medium/Large8-10
Slipper Large/XL11-12