SOREL Ella Li strappy flat sandals sz 8.5 - worn once

These are super cute stretchy sandals. I purchased and only wore one time. I think I need a true eight because they are 8 1/2. I felt like they were too big so they rubbed my feet in a weird spot and were not comfortable. My girlfriend got the same exact pair that I got whenever we purchased them together and she loves hers and hers are very comfortable so I think I just got the wrong size. They are in perfect condition. Bundle and save or just make me an offer.