This is how I found out first hand that scent lockclothes are a joke...

I was hunting one time with my Dad & his buddy several years ago when scentlock was fairly new. On the drive up to the hunting grounds, he was talking about how great his new scent lock camo was (which he was wearing), and how warm & comfortable it was, and how well the pattern blended in to this area we were going to. He says "plus the deer won't be able to smell me!" When we get to where we were going, we're getting our rifles out & packs on, etc., standing relatively close to each other. He lays a big fart which got all our attention and it stunk so bad I almost gagged. Then I said "that was through the scent lock!" We were trying to be quiet, but were dying laughing!