I always wear a 6. ) but it tore up my toes the first wearing so sadly, I dont recommend. 5 and the 6 in this was perfect. Given this policy, I am not buying batteries from Amazon ever again. Blasen, Fehlanzeige, auch nach stundenlangem Lauf durch die Stadt. The adjusters are nice, but I still couldnt get it to level completely until I stuck furniture pucks under the feet, then it leveled right up for some reason. The toe area is quite dramatically curved up, and so with each step, I felt my toes flexing the toe area. Thread the band through the loop and press the little pin into a hole. The strap looks suede in the pics, nope, thats just a textured rubbery strap designed to imitate the look of the original Adidas series. However, there is a limit if youre looking for some real power decibel- wise.