1028473 Birkenstock Bend Chelsea Black Leather-Narrow The new Bend Chelsea sneakerboot brings contoured comfort to a refined mid-top. Birkenstock combined the best of boots with the relaxed design cues of their best-selling sneaker, giving you a pull-on design and side gusset that makes getting in a breeze. Smooth leather elevates the experience you get on the inside-feel the footbed and find yourself going block for block in any city, any place.