I'm a 32 actual waist too. I find the seat comparable on size S Bleeckers and M Tech Fleece.
We always post height and weight for sizing purposes, but truth is, it depends on how your weight is distributed on your body.
All I can say is that the Bleeckers fit bigger than the Tech Fleece, so I size down. Not sure what will work for you, but try to avoid that diaper effect.
If you're not sure what size, then I would just avoid buying because returns suck. Spend a little extra and get some JE Escobars, just better all around.