I bought it for my husband and we like how it covers the feet and retain temperature. it's so light and easy for travel(with the little pump). I would like something that covers to the knees, but this is the best I can get. Be careful if you have to move it from one place to another to pour water out, you may end up tearing it open like I did (no disaster, just a tiny slit along the seam), so use it near the drain.