Calculate your own measurments, then select your running band size.
NOTE: running band will fit snugly to your body for zero bounce.
It will feel tight. If you want a looser fit size up 1. 

Order Size
CM In
1  71 28"
2 73.5 29
3 76 30
4 78.5 31
5 81 32
6 83.5 33
7 86 34
8 89 35
9 91.5 36
10 94 37
11 96.5 38
12 99 39