Birkenstock Kalahari Birko-Flor Black Women's keen mens This 3 part system is

This 3 part system is consisting of an egg shaped heel cavity

Polyester binding

and help alleviate common foot conditions typically caused by supination

Durable and flexible

Lytning™ Oil & Slip Resisting Outsole with Tech-Tonic Rubber Pads

Birkenstock Kalahari Birko-Flor Black Women's keen mens This 3 part system isBirkenstock Kalahari Birko Flor Black Women's The BIRKENSTOCK Kalahari for women designed to bring Birkenstock comfort and support to your favorite trail and water based activities. These off road ready sandals feature a direct attach PU footbed, a rugged PU TPU outsole for added traction and sturdy hook and loop closures for a secure fit. The upper is made from the skin friendly, hard wearing synthetic material Birko Flor. Anatomically shaped PU