I thought I'd give these a go after despairing of my son kicking his socks off in the middle of Winter and ending up with freezing cold feet. They have worked a treat and my son has yet to manage to get his socks off whilst wearing them. They also make a plain pair of socks more interesting and many people have mistaken them for being part of a funky sock design. My only complaint is that they are only made in one size. They fit my 6 month old son at present, but not sure they will last many months longer.