I had a different experience with GR8. Most running shoes I wear a 10 and running stores say I'm a 10 without a doubt when I get measured. My very old barricades are 9.5 and they fit perfect. I updated to mizuno's and the 10s were WAY too long and the 9.5 felt better so I stuck with them and now realize they're not wide enough and are uncomfortable after a while. So I bought GR8 in 10 and 9.5 wide and the 10s fit absolutely perfect.Thanks! This is exactly what I cam here to find out.