Hi all,
I recently purchased the Osprey Atmos 65, mainly for weekend backpacking, but it appears that it might be versatile enough for Philmont; my first trip. The capacity is rated at 4000 ci and the recommendation for Philmont is 4800 for internal frame packs. However, Osprey has designed the pack in such a way that I can carry a 3 liter hydration bag in the space between the back of the pack and the netting against which my back would come in contact. Additionally, they've also designed the pack so I can tie my sleeping pad to the outside. I know this pack has just recently come on