Birkenstock Suede 'Boston' Slip-On Clogs in Taupe (Cream Color) (43 M EU - 10-10.5 US Men) Suede (Napped Leather) Synthetic sole Napped Suede Leather. Excellent arch support and Anatomically correct cork footbed, crafted from cork that is 100% renewable and sustainable, encourages foot health. Soft premium suede upper with a matching adjustable strap for a perfect fit. The suede lined, contoured footbed will mold to the shape of your foot creating a custom footbed that supports and cradles you each and every step. The Boston Suede from Birkenstock is a classic clog that will add style and comfort to your wardrobe.