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. Sydney Bs Birko-Flor Sandal In Old Rose Birko-Flor And Silver-Tone Hardware 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