Due to the way these materials are flowing over into eachother it's a really different feel on feet as used to with other am1's. Yet i would say keep it True To Size. Just feels comfortable, and having tried a half size down, i can say that was way to tig

The way these materials flow into eachother (as a hyperfuse) make it a pretty decent true to size fit. The thoebox fits kinda tight when walking due to the materials cramping together at the creasing point.

Comfortable socklike fit. True to size