I purchased these leg warmers twice for my son because I love them so much. He is 8 months old and in the 50th percentile for weight, 75th for height, not a chunk by any means. These fit him perfectly and help keep his knees covered and warm while crawling and they make diaper changes a breeze! I have washed them and have had no problems with quality. I would highly recommend these leg warmers to anyone looking for a good deal on some cute ones.