We're sorry to hear that you got blisters in your arches while snowshoeing. The most important factor in preventing blisters is the fit of your boot, so we recommend going in to your local REI store and working with a footwear expert to get measured and try on different styles. You can also schedule an outfitting appointment to work with your schedule if you would like.
Typically, blisters are caused by friction from too much movement inside your boots. In addition to appropriate fit, consider these options to help prevent blisters:
A good pair of moisture-wicking socks (or a liner sock) to help prevent blisters in the future.
Lacing techniques (to keep your foot from moving too much in the boot),
Lastly, because you are snowshoeing, you could consider a pair of winter boots like the Oboz Bridger Insulated Winter Boots or the Merrell Thermo Chill Waterproof Boots. They are insulated and have snowshoe specific features like a rubber heel kick/rand for keeping the snowshoe strap in place. As with a pair of hiking boots, you'll want to try them on for appropriate fit to your foot.
Hope this helps!
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