Birkenstock - Arizona - Birkibuc™ (Unisex) Birkenstock Arizona - Birkibuc™ (Unisex) $99.95 Rated: 5 stars! Birkenstock - Arizona - Birkibuc™ (Unisex) Birkenstock Arizona - Birkibuc™ (Unisex) $99.95 Rated: 5 stars!