I normally wear a size 8 but ordered an 8.5 M. I have ordered Avia online before but since i'm never sure about the size i always up size by  The fit is comfortable. The front is a little wider than it looks in the picture but this sneaker fits good. I bought them to walk in as well as work in (hospital setting). I'm not an avid walker but find that they were comfy during my walks. Air passes through them which keeps my feet nice and cool. I would buy them again. I have only had them for about 2 weeks. The color pictured is as is when you receive them. I would recommend them and the price is reasonable.