Guaranteed for Father's Day. 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.. Boston BS Waxy Leather Clog in tobacco brown waxy leather and copper-tone hardware with buckle accent. 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