BIRKENSTOCK MADRID EVA BIG BUCKLE PURE SAGE - WOMENS SIZE:Size 39 Hydro Flask couldn’t think of

Hydro Flask couldn’t think of a bottle more deserving of a refresh

The high-quality

The durable rubber outsole offers optimal traction and flexibility

It includes a real leather insole and an EVA outsole

A longtime favorite

BIRKENSTOCK MADRID EVA BIG BUCKLE PURE SAGE - WOMENS SIZE:Size 39 Hydro Flask couldn’t think ofThis 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.