About the brand: Iconic and sustainable designs that are always on-trend.. Please note: Size selections are European. For US conversions, please reference size chart.. Arizona BS Narrow Fit Birko-Flor Sandal in blue Birko-Flor and tonal hardware with buckle accents. Original Birkenstock® suede-lined natural cork footbed that molds and shapes to your foot, featuring pronounced arch support, deep heel cup, and roomy toe box.. Man-made sole. Made in Germany