I bought this ULA Circuit last November (I think). It's a Medium with Extra Large Belt. I packed my gear in it and walked around the block, twice. It just isn't right for me. No damage, stains, etc. I stored it in the box it was shipped in. I've changed to Zpacks ArcBlast.
Asking $175.00 shipped lower 48, paypal. OBO! SOLD, THANKS TO ALL WHO LOOKED.
http://www.ula-equipment.com/product_p/circuit.htm