Backpack Ventilation Frame Max UL3 (New)

I am using this on Durston 40 and 55L packs and it works great. My back has been as dry as my chest. The only thing I can think that would improve it would be to have a more elegant way of extending the length of the tie downs (which I needed to do on the 55L). I just added some extra cord, which works fine, but looks a little more homemade.

Used this with my REI ultralight backpack. The pack had little structure and the ventilation frame made a huge difference.

Great piece of gear. Made my favorite backpack cooler and more comfortable. Gave it a frame like feel