I needed a little more hardy slipper with an outdoor sole, as I run in and out to the garden and to walk the doggies around the house. These slippers are also warm which is great for my always cold tootsies, and the sole is extra heavy duty. The sole is curved over the toe of the slipper also, making it able to take the abuses of the outdoors. Great fit, comfy for my high arches, warm and weather resistant!