I wanted to like these, they are so darn cute! I got two sizes for my 15 month old son and the one that fit the length of his foot was too narrow across the toebox. They were really hard to get on him and then they were tight. I put them on him without socks and let him walk around the house a bit. When I took them off there were marks on his foot, another indication of the tightness. I feel strongly about letting our feet assume their natural shape, especially with kids, so I sent them back. I have found their adult moccs to be too narrow as well.