When weekend packs just aren't cutting it anymore, it's time to move up to the Altra 65. Boasting expandable storage capabilities via the extendable top lid and the extension collar, the Altra 65 can support any week-long back country sojourn without wrecking your shoulders. Thanks to the Load Transfer Disc waist belt, the Altra 65 moves intuitively with your hips, keeping your pack weight centered no matter how many talus fields there are between you and high alpine lakes. The C2 composite construction paired with the GridLock shoulder straps allow you to dial in a customized fit, giving you confidence on uneven terrain while efficiently carrying all of your gear. Despite it's large size, this pack can also front as a weekender; cinch down the compression straps and enjoy the streamlined carrying power of this backpacking behemoth. The Altra 65 features an ingenious U-shaped zipper, giving you access to the entire contents of the main compartment without having to yard sale all of your gear on the trail. The large front kangaroo pocket stashes tent poles and other items while the Wingman one-handed side pockets keep your headlamp and camera close at hand so you're never left in the dark. Being in the mountains for extended trips requires gear and the Altra 65 is more than capable of supporting even the most meticulous packers and the durable 500D silicone-treated PU fabric ensures that the Altra 65 can stand up to the abuse and use of serious backpacking.