Those cheap DHB look quite good / get good reports.
The cheap Lusso (CRC) look better and get a better rating than the cheap Endura (also at CRC).
I had to go and check my waist as I normally prefer pants to be a bit loose / baggy / comfy. I buy 36" but an honest (no sucking in !) measurement is also 36" yet Levi's etc can be pulled down with no belt and no un buttoning - go figure ?!
If it makes a difference / helps with sizing, I am 5,9 / 13 stone / fairly solid build. I have some Endura Humvee's (or whatever they are called) that fit well, without being tight (i.e. no overhang !) that are XL.
I like Lusso stuff. Sounds like an exotic Italian brand but they are made in Manchester. Have two pairs of bib shorts and a few tops and they are very very good.