Birkenstock Arizona Fur. Warm and comfortable lambswool lined sandal by Birkenstock. Super high quality shoe with a foot bed made of cork and natural latex mix which is stabilised by jute thread. An orthopaedic sandal that that supports your foot and distributes weight over the entire foot. The foot bed and leather straps are lined with soft lambswool to keep your foot warm. These sandals can feel small because of the lining, so consider sizing up.