I bought my BW pants with a 32 inseam with intention to hem to my desires. Actually my wife did the hem, while I nodded in approval.
In the hem, I had my seamstress sew in small button holes for a draw string. This was done just like the military style BDU's (designed to blouse).
I like to blouse my pants above my boots. I wear 8" Danner Pronghorns. Blousing keeps the pant leg out of the mud (sometimes). I also think that the ticks have a more difficult time heading north toward the crotch area
Picture shows what we did.