Birkenstock London Leather Clog Leather Imported Cork sole Birkenstock&reg; Size Chart Please be advised that the Birkenstock&#174; Narrow width accommodates both traditional narrow and medium widths. Click here for more information about Birkenstock's widths. The Euro-styled London offers Birkenstock&reg; comfort in a closed-toe design. Premium leather upper or combination wool and leather upper with a matching adjustable strap ensuring the perfect fit. Anatomically correct cork footbed, crafted from cork that is 100% renewable and sustainable, encourages foot health. The suede lined, contoured footbed will mold to the shape of your foot creating a custom footbed that supports and cradles you each and every step. Neutral heel profile and deep heel cup keeps the natural padding of your foot where it belongs, under the heel, dist