A very well-made, good looking shoe. I have the Chrome/White/Teal in a size 37 and I wear a 5.5 or 6 in US women's. I previously had Northwaves in a size 36 using a Superfeet insert so it took a little time to adjust to this shoe. Having high arches, I chose the most supportive arch insert, labeled "L", provided with Giro's adjustable SuperNatural Fit Kit (low "S" and medium "M" also included). I found I had to move the arch inserts much further back than the area outlined for them on the insole. Once they were in the proper position for my feet, the shoes felt great. Bottom line, its worth the time to experiment with the 3 arch inserts and their position on the insole until you find the best fit for your feet.