As hard as it is to find socks that stay on babies feet I decided to order these instead. They are perfect. There are two button adjustments for a tighter or looser fit and even if they are too big for the baby you can pull the tongue of the bootie up and it makes the fit tighter. They are very soft and very cute. My daughter is only 7 months and we purchased the 18 month and they fit a little big but will last for a long time. The colors are very vibrant and we have found they go with a lot of outfits as they have the 2 different colors of pink and most baby girls things are, well, Pink!