while a thumb loop secures the wrap to the hand

Just trim our shoe inserts along the cutting line to your size

Upper: 11" VINTAGE CABALLO

No refrigeration or special handling necessary

Birkenstock Unisex Birko Sport Arch Support - Sport Size:39 M EU / US Women 8-8.5 M while a thumb loop securesBirkenstock Unisex Birko Sport Arch Support Sport Birkenstock Size and Width Chart Please be advised that the Birkenstock Narrow width accommodates both traditional narrow and medium widths. The Birko Sport Arch Support Sport system provides support and cushioning when you need it the most! This two part arch support system is made specifically for sports shoes. The blue foam insole retains memory of your foot providing all day comfort. The cork heel