Bought for granddaughters who are 8 and 5 years old. You loved her! They were the perfect size for an 8 year old and thanks to the stretch she will be able to wear them for quite a while. A 5 year old girl can wear them and thanks to the quality they will last her a long time. They're not very thick, but the wool doesn't have to be that thick to be warm. So they fit into boots and happily keep their feet warm. Yes we would buy again!