As everyone must know Guidis do run small, but these would be comfortable on anyone from 44-45.5, depending on sock preference . They're perfect for summer wearing. An easy going boot for easy days. Simple to pair with anything you like, from Rick to LUC, Poell to Carpe. These are the ones with the slanted zipper stopper issue that you may or may not remember. Again, this has no impact on the boot aesthetically or structurally. Hit me up with any questions you may have!