I am one of those people who suffer from plantar fasciitis so have trouble finding a slipper with good arch support. There just aren't many out there. These fill the bill admirably. I wear them with socks and have no trouble with them wanting to fall off. They also have a fairly thick rubber(?) sole on them so going outside is not a problem. I debated buying these as they were kind of expensive (for slippers) but am glad I did. They are worth every penny!