This is my husband's second pair of Old Friend adjustable slippers. Because of the adjustable strap, it fits his somewhat slimmer foot well, and can be tightened as the inner fleece compacts. He wears these pretty much constantly in winter. There is a sturdy rubber sole for a quick trip to the patio too. The first pair wore out after just a couple of seasons' wear, however, and that's a little sooner than I expected. The sole started crumbling and flaking off -- the upper and fleece was still good. Because they fit so well and are comfortable, we decided to reorder, and probably will again when this pair gives out too.