Excellent shoes. Followed the foot measuring guide and ordered a pair of Grand Tourer ll's in size EU45. While they did fit, I felt that a bit more room in the toe box would be better for the inevitable hike a bike so ordered a pair in EU46. When they arrived I compared the two sizes. The larger size was much better and yet still a good fit around the heel. The boa system clamps down well and the release is as good as any other. Sole tread is slightly softer than the other gravel shoes I've owned but still a stiff platform for good power transfer. The return process was hassle free.