I am very happy with these slippers.  I purchased them for my 8 month old daughter and they still fit at 13 months, so we are definitely getting a lot of wear out of them!  We have a drafty, old home with slippery hardwood floors. These slippers were perfect for keeping her feet warm while the grippers on the bottom gave her traction to crawl, take steps, and begin to walk.

I like them so much that we have two pairs - one pink and one purple. The reason for the 4 stars, instead of 5, is that the velcro has ripped off one of the purple slippers.  She wears the much purple less than the pink, so I do not believe it is due to overuse. The pink pair has held up wonderfully, even through the wash!