I have been testing the Cotton Carrier for a few months now and wrote a review that I posted on my website (photos included):http://www.lucadiana.net/reviews.html
For the amount of hiking that I do: on the sand, on trails, in the snow, uphill, downhill, etc. this is a piece of gear that I came to look as indispensable.
If interested in ordering one please use the link provided as it will count toward my referral:http://buy.cottoncarrier.com/?Click=2106
For not taking too much space I'll post here an excerpt of this review. I'll be pleased to discuss it here on the forum, though:
"I took the Cotton Carrier out for a few test hikes and I was immediately surprised by how well it distributes the weight around the shoulders/upper back area. The vest, actually, is streamlined enough to allow the use of a backpack on top of it. For my test hikes I picked a variety of terrain: flat, uphill, downhill, in thick brush, off-trail and rocky. In all these situations the Cotton Carrier revealed itself to be of great help. In some of them, like hiking on rocky uphill terrain off the trail I’d say it was nearly essential. Not only could I stop worrying about my camera swinging around, but I was able to use both my hands to gain a solid grip on the rocks while ascending. On flat terrain I also took a test run, jogging moderately without touching the camera to see if the carrier would come in handy in that situation. Every once in a while I find myself having to run from a spot to another with the camera strap around my neck while holding it by the lens. Needless to say after a few yards the fun is over. Not only was I able to run faster with the Cotton Carrier but the weight of the camera was once again greatly minimized.