Birkenstock insole (half-length). These insoles feature a luxurious black suede with gold stamping. While the standard blue footbed is marketed for sports, these are suitable for dress shoes. They are a BirkoClassic cork insole designed with foot health in mind, size 39. It's unclear, but I believe this is a discontinued product. I purchased these about 10 years ago, but they have been well-preserved and are in beautiful condition. Unused. No box. Shipping will be done using recycled materials. Please note that the colors may vary slightly due to amateur photography. - Brand: Birkenstock - Size: 39 - Material: Cork/Suede Leather - Features: Designed with foot health in mind - Made in: Germany Thank you for looking.