Birkenstock Arizona brown Birko-flor
Classic Footbed. Level Three support- Pronounced. Birko-flor is a synthetic two-ply strap material. The base ply against your skin is a felt of spun acrylic and polyamid fibers. The outer ply is a vinyl-like material that can be made to look like leather or nubuck. Birko-flor is durable and water resistant.