I believe the size chart below is accurate. Child Size 8-10. The numbers are interchangeable.
Smiffys Dr Seuss Thing 1 & Thing 2 Kids Costume, Official Licensed Cat in the Ha
Pottery Barn Kids Dr Seuss Thing 1 Costume Toddler 2-3T Cat in the Hat
Thing 1 and 2 Dr Seuss World Book Day Kids Boys Fancy Dress Costume Character
World book day costumesCat in hat Dr suess
Dr. Suess Cindy Lou Who Costume Small Halloween Dress Up
