I'm not taking any chances. I use these: https://www.amazon.com/gp/product/B002R8HN1W/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I got furry sheepskin ones on Amazon. They look a little retro, but they work. Here's the link to the ones I got:

https://www.amazon.com/gp/product/B002R8HN1W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1