The Birkenstock Bostons are having their moment and we can’t say we’re surprised. Super ergonomic, ultra stylish and perfect for summer, these open-backed slip-on sandals feature the Birkenstock signature shaped footbed for pure comfort with every step. Anatomically Shaped Cork Footbed, Suede Uppers, Suede Footbed Lining, Adjustable Pin Buckle. Birkenstock Boston Clog - Sky Blue Suede, Size UK 2.5 | END. Clothing