Dear Misunderstood,
I think jock straps come in S, M, and L, not waist sizes. But they are not so expensive that you could not buy two different sizes to get the right one. Then you could hang the other one on your bedpost, LOL. Don't worry too much over where the straps go, dear. That question is a bit like asking whether you fasten your bra in front or in back. It don't matter, and there ain't no "right" way.
Stephie
