Saved my back!
Have used internal frames but nothing has been really comfortable on my lower back and hips. Big retailers have custom fit my internal witih only limited success. Decided to try the Trekker because of all the testimonials about how much more comfortable externals are. I can't believe the difference! I can finally haul 50 pounds with 0 back or hip pain. Not the lightest pack on the market, but you can't beat Kelty's, quality construction, organization, and price! If you're not planning on doing a bunch of scrambling or bushwhacking, there is absolutely nothing you won't love about this pack!