Superfeet RUN Comfort Carbon Fiber Orthotic Inserts Thick-Cushion Insoles for Running Shoes with High Arch Support, Unisex, Citron, 5.5-7 Men / 6.5-8 Women Transmissions Very sturdy and easy to

Very sturdy and easy to install

just 2 hours charged time and automatic fully charged cut-off system

charge/discharge current

or charge through car outlet(package includes) when having a rv trip or road trip

Superfeet RUN Comfort Carbon Fiber Orthotic Inserts Thick-Cushion Insoles for Running Shoes with High Arch Support, Unisex, Citron, 5.5-7 Men / 6.5-8 Women Transmissions Very sturdy and easy toBrand: Superfeet Color: Citron Features: Do these insoles need to be cut to size? Yes, these are trim to fit. Superfeet insoles are made to be trimmed to fit your shoes and boots; follow cutting instructions before use, and if you're between sizes, size up and trim down to fit Are these suitable for high arches? High arch orthotic support helps stabilize the foot while running, reducing stress on feet, ankles, knees, and back What makes the arch