The Birkenstock Boston Shearling in stone is our favorite slipper to slide into after a long day at work. We always have trouble keeping these on our shelves because people know the comfort and quality they are getting into when they step into a Birkenstock. The perfect present to come home to! Upper -  stone coin suede. Footbed lining -  shearling. Sole - EVA. Details - shearling, individually adjustable pin buckle in metal. Made in Germany. Width - Narrow.