Combat boots with back zipper

Gently worn, combat boots in a size 9. Only wore these boots 1-2 times. Boots are by the brand bamboo. Has a soft material liner as shown in photo 9. Has a zipper on the back that can be unzipped 🚨BUT BOTH BACK ZIPPERS DO STICK, they are hard to zip and unzip. 🚨 small damaged spot shown in photo 15. I also have this boot listed in black on my page!