Birkenstock s Boston sandal has earned a legendary status thanks to its individual, no-nonsense style, resurfacing once again for the new season in a tobacco brown colourway. Highly durable and soft-to-touch and designed to stand the test of time, they're decked out with soft oiled leather uppers and sit atop the brand s iconic EVA outsole. Leather Uppers, Adjustable Strap, Contoured Cork-Latex Footbed, EVA Sole Unit, Made in Germany. Birkenstock Boston Tobacco Brown Oiled Leather.