I have a Kifaru ultralight Koala that I am am not using. The Koala is like new, it has never been fielded, I just found something that suited my needs better.
The Koala is chest bag that can be worn alone with it's X harness or you can attach it to your pack with the lifter straps to take the weight off your shoulders. The coolest thing about this by far is the conceal carry compartment. I'll put a link so you can see the review and how everything works.
The Koala comes with bag, chamber pocket, X harness,compression and lifter straps. No rips, tears, or stains. Like I said this thing is brand new. The Koala is $206.00 plus shipping new. Id like to get $160 shipped.
Kifaru ultralight Koala link: