Consider the Thule carbon frame protector instead. 63" OD, 0. I bought size 2 shoes for this school yr & she has room to grow! I am so in love with them and cannot wait to wear to my wedding! Its very difficult to get the bases to fit. We were missing the right side back. I?m 5?6 usually wear a size 18/20 but I?m heavier now so closest to the 20. To be fair, the sound is good. That extra 50% of power is really noticeable, it gets very loud if plugged into the wall and still holds together very well, no distortion. I?ve had them for about a year now and I wear them all the time.