Birkenstock Boston Essentia Narrow Fit features a single-piece, lightweight EVA construction and an anatomically shaped footbed for water-friendly comfort and everyday wear. Product image is indicative. Key attributes: Black | EVA | Water-friendly | Lightweight | Flexible | Individually adjustable strap | Anatomically shaped footbed | Slip-on mule design | Closed-toe clog silhouette | Single strap with pin buckle | Dimensions & fit: Narrow Fit | Composition & care: Upper: EVA | Footbed: EVA | Sole: EVA | Lining: EVA | Wipe clean with a damp cloth and allow to air dry.