My Eberlestock X2 has worked wonderfully as a day pack. In fact, it will be my go-to pack for a 5+ day backcountry hunt next year. I used my J104 this year, but I learned a few things and have reduced the bulk to where it will fit in the X2 now. I need to test it a bit more with relatively heavy loads (~100 lbs) just to be sure it will handle the meat pack out fine; but so far it seems fine. Edit: I have also used it as a carry on a few elk hunting trips, works fine.

Last edited by prm; 03/27/13.