Although Crocs sizing has become very confusing (at least for me) over the past couple of years with the introduction of new styles, this seems true to size (I wear a 10 and bought a 10). The main thing is that it is super, super comfortable and offers a lot of support. The ultraviolet/aqua is also a cool color combi and looks good with lots of other colors. So glad that I could buy it from Amazon.com and have it shipped to Tokyo.