The Birkenstock Boston CT Clog is a versatile classic, perfect for year-round wear. This sporty adventure Crosstown version is designed for active Birkenstock enthusiasts, featuring a sophisticated and individually adjustable design. Its polyurethane sole, affixed to the footbed in two layers, provides maximum flexibility, grip, and durability. The upper is crafted from extra-thick, oiled nubuck leather with an open-selvage finish for a unique and stylish look.