Birkenstock Women's Madrid Big Buckle EVA - Gray Taupe Hydro Flask The proprietary sugarcane-based SweetFoam® midsole

The proprietary sugarcane-based SweetFoam® midsole is both sturdy and super soft

the Waffle Crew’s knit fabric is made from a stretchy Better Cotton blend that is breathable yet ultra cozy

TempShield®️ double-wall vacuum insulation keeps contents cold up to 24 hours

Dimensions: 9

Leather upper

Birkenstock Women's Madrid Big Buckle EVA - Gray Taupe Hydro Flask The proprietary sugarcane-based SweetFoam® midsoleThis is a new and modern interpretation of the BIRKENSTOCK classic Madrid. This version features our popular Big Buckle made from a stainless synthetic material and makes an impression with its durability and minimalist design. Modeled on the cork sandal, it is made from the ultra lightweight and highly flexible synthetic material EVA. The high quality, odor neutral EVA has been tested for harmful substances and combines numerous positive attributes: