Stoneguard

Get underfoot protection on the trail, over rocks, debris, and tough terrain. Slip a removable StoneGuard™ insert into your trail shoes for a stable and soft underfoot feel. Made to fit into any shoe, this removable StoneGuard™ insert comes in a variety of size ranges designed to be cut to a desired size and inserted under any insole. The diamond-shaped plating allows for a stable ride throughout your run, along with flexible yet firm underfoot protection.

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Best for trail running, hiking S (W 5-7) M (M 6-8 / W 7.5-9.5) L (M 8.5-10 / W 10-11.5) XL (M 10.5-12.5 / W 12) XXL (M 13-16)