A few years ago my husband had foot surgery just before Christmas. Of course, we had already made plans to travel from California to Ohio for the holidays - so how to keep his foot warm? I went to Walmart and bought a velvet Christmas stocking and it fit beautifully over all the bandaging (should fit over a removable cast also). When it came time that he could put weight on his foot, I added glue dots to the bottom of the sock for non-skid - use the non washable kind and let dry completely. Anyhow, the point is any Christmas stocking pattern can be used and adjusted for size easily. The nice long leg of the pattern will keep it up in place. And best of all -- it is washable!