Madewell Black Size 6M The Basketweave Sandal These chunky stacked-heel slingbacks have intricately braided straps and feature signature cushy soles to seamlessly take you from daytime to date night. Sizing: True to size. M=standard width - Adjustable quarter strap with buckle closure - Padded footbed - Approx. 3 1/4" heel Leather upper, manmade sole