I grew up learning to hunt with my grandfather & father with their red plaid wool shirts and their iron sighted .30-30s back in the 40s & 50's...they never used scent loc suits and I don't either, just hunt the wind like they did.
In fact, a huge rewarding part of hunting is the experience of working a piece of ground using the wind, sitting against a tree and having a good buck pass so close you can see his nose turn wet black when he licks it...or have him stop and study me trying to figure out what that blob is, but I have the breeze in my face and know he can't tell...the full alert stare-down continues for a while then eventually he walks on...that's a rush.
Knock on wood, hunting the wind has served me well all my life, and I assume it will for the few years I have left...