Almost true to size except the toe box is slightly longer which makes them look like narrow shoes. Oddly, the arch support on the left was too far back (to the heel). Also, the arch support isn't as high as the previous pair. The outsole has several spikes across the width to make it more flexible, that's all. Comfortable, well-made upper and, just so you know, it doesn't even have a heel. So, from here it's up to you.