I'm like many who have already commented. I have not bought into the idea. Several of my friends have. Some swear by the "scent blocking" suits, but others swear at their's. All I do is try my best to play the wind in my favor, ease in and out of my hunting area as quietly as I can, and try not stinking the place up doing so. Almost always I hunt from a tree stand. Often 25+/- feet off the ground. I am convinced getting up off the ground can help hide my scent somewhat. I do nothing special to my clothing except use "scent free" washing soap. I do the same when bathing - scent free bath soap. But frankly, down here in the deep south, most times by the time I get to my stand and settled in, I am seating up a storm. Especially in early bow season.

I do very often use a "drag rag" and rubber knee high boots, hoping to somewhat mitigate my the scent trail of my foot-falls. I make the "cover scent" from urine I collect from the bladders of deer I kill. Keep the unused portion in the freezer. Pull out what I need. seems to work OK ... sometimes.