We ordered them for my daughter's birthday party at one of those indoor jungle gyms that only have socks. They fit my 3 and 4 year olds perfectly and helped them walk and climb without slipping. These are now the children's favorite socks. The non-slip coating can make shoes difficult to put on, but is great for shoes that are easy to fall off or for playing barefoot. My kids love carrying them around the house to keep them in place, especially my son who has a loft bed with a few steps.