I got these for my son as he has size 12 feet, and most of the grippers that go over heel and toe will not fit on his shoes. These fit easily; the velcro strap was more than long enough, and holds very well (I was afraid it might only just fasten, but that is not the case). They do give a pretty good grip on ice, too, as we have already had occasion to find out. The problem is they are uncomfortable to walk in, since the ball of the foot is raised a substantial degree higher than the heel. It isn't really an issue as my son mostly will need them to get from the house to a vehicle, and they can be slipped off once he has sat down, but I would definitely not recommend them if you intend to walk far. It might be more comfortable if you were wearing boots, but that rather defeats the object of not having to carry indoor shoes to change into. They will be a huge help for getting the wheelie bins out in winter, though, as he will certainly not slip on the path.