https://www.amazon.com/Tidy-Trax-Hands-Free-Covers/dp/B003QMMJVM

you just have to measure the outside of your shoe to get the size.

these work great, easy to slip on, easy to slip off, and when I go for a smoke between games in snow, rain, whatever, I don't worry.

I highly recommend these, but some might say 30-35 is expensive...to me its worth it.