Simms waders fit

I'm thinking about buying a new pair of G3's. I'm 5'9 170 with an inseam of 31-32in. According to their sizing chart, a Medium-short is supposed to fit someone with an inseam of 31-32 but I still need to be able to kneel, step over logs/rocks, etc so I'm not sure if theres any room to move.

Does Simms take that into account when they size the waders? Or do i need to take that into account and add a couple inches for better movement.

I have the Redington Sonic Pro's in Med and they fit quite well.

I think a Medium will fit you.

I think everyone should try on waders and boots to be sure of the fit.

If you call Kiene's I think they will ship them to you free and have no sales tax.

I have 28" inseam and need a short.