Eja also comes in the Pro model which is 1/3 lighter (that gets it under 2 lbs) for only an additional 20$.? I have the Exos Pro and would not trade it for any pack I have seen or used.? I took it out in cold weather last year, with full BV 450 and a few pounds of extra warmies, water and food at 26 lbs.? Hardly felt it.?? Long weekend in Yosemite, late summer it was at 16. I don't make many gear recommendations, but don't overlook this one.