I was putting on the snow tires this weekend, as we had a bit of snow in the mild Pacific NW, and I had a another option staring me in the face. The local tire dealer, Les Schwab, puts your tires in a bright yellow “plastic bag” after changing them. This bag is tough as nails and extremely puncture resistant, plus its bright yellow color is terrific for spotting. Seems to be a great option and maybe easier to obtain.