Authentic. These Birkenstock Papillio clogs have a casual style with a flattering wedge heel.  Brown nubuck leather - Birkenstock's color is Dark Brown.  ((Color is slightly darker than shown).  Antiqued silver tone hardware. Adjustable strap.  Wedge measures approximately 2.5" at the heel. Minor scuffs/scrapes/spots; minor footbed stains/wear, mostly at the heels; cork defects/scrapes (photo 10); minor staining/scuffs at the straps (photo 7). The soles are in very good condition, with little wear. No odors. Gently worn.  In good - very good condition. Size EU 38 Narrow/U.S. 7 - 7.5.