Width===Medium/Narrow

Narrow EU37===US Women 6-6.5

Narrow EU38===US Women 7-7.5

Narrow EU39===US Women 8-8.5===US Men 6-6.5

Narrow EU40===US Women 9-9.5===US Men 7-7.5

Narrow EU41===US Women 10-10.5===US Men 8-8.5

Width===Regular/Wide

Wide EU42===US Men 9-9.5===US Women 11-11.5   

Wide EU43===US Men 10-10.5===US Women 12-12.5   

Wide EU44===US Men 11-11.5

Wide EU45===US Men 12-12.5

Cushioned BIRKENSTOCK soft footbed creates custom support with wear

Birko-Flor® synthetic leather upper/li>

Suede footbed lining helps keep you comfortable

EVA sole is flexible and lightweight

Two adjustable straps with metal pin buckles