The Boston Clog Features A Classic Closed-Toe Silhouette With A Single Strap And An Oversized Buckle For A Timeless, Seasonal Aesthetic. Gold-Tone Hardware Buckle Closure 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 Color/Pattern: Cognac Material: Oiled Leather Upper Made In Germany Please Note: Size Selections Are European. For Us Conversions, Please Reference Size Chart. Iconic And Sustainable Designs That Are Always On-Trend.