The Stalon Narrow Chelsea Boot in Black from Birkenstock.  

The Stalon in graphite is BIRKENSTOCK's version of a robust Chelsea boot. Featuring side elastic panels on the shaft and a loop at the back, which has been combined with a rugged urban sole. A solid yet fashionable boot. The cork frame of the outer sole makes for an instantly recognizable BIRKENSTOCK design. The upper is made from water-repellant oiled nubuck leather.

• Removable, anatomically shaped cork-latex footbed
• Upper: oiled nubuck leather
• Footbed lining: smooth leather
• Sole: thermoplastic rubber
• Made in Portugal