User Review: ULA Equipment Catalyst
Did the last 1700 miles of an AT thru hike with one. It was perfect. Lightweight (replaced a Gregory in Damascus) roomy, and durable. It's still in great condition. I probably never had more than 30 pounds in it and wouldn't recommend that you go heavier than that.
Where to Buy
We found the ULA Equipment Catalyst at 1 outdoor retailer: