My size 11.5 columbia hiking boots listed on naughtybids

I am listing my columbia hiking boots on naughtybids.com They are size 11.5, they look good yet and are still very wearable, however the insides are showing lots of wear from being on my feet the last 2 years, I wear them to work almost everyday, but the support is now almost gone so I need to replace them with new ones. I would be willing to trade for a new pair if anyone wants to do that. My e-mail is studman1592005@yahoo.com