Size seems right. I have 10.5 most brands and 11 Nike, these 10.5 are snug on the toe but fit well and the 11 is slightly larger but also fits very well. To be honest I bought the red for 11 and the blue for 10.5 and they both fit just right. I love these shoes, I'm very impressed with them, qualitatively. I haven't owned them very long but I've hiked and run and they've held up great. For $26 you just can't go wrong.