The Birkenstock London is the perfect sibling to the Boston, offering the same signature comfort and an anatomically shaped cushioned cork footbed, designed to absorb moisture. Above ground? A soft, napped leather, with a velvety touch that adds a luxurious finish to this simple everyday slip-on. Suede Upper, Suede Footbed Lining, Cork Footbed, Adjustable Buckle Strap, Anatomically Shaped Footbed, EVA Outsole, Made in Portugal, Birkenstock. Birkenstock Men's London Black Suede.