Arc'teryx Altra Backpacks

*Find them here: www.gearcoop.co...
The smaller volume Altra packs, (Altra 33 through 50) keep weight to a minimum by using the efficient C2 (Composite Construction) system. The larger volume Altra packs (Altra 62 through 85) have a Load Transfer Disc™ that pivots to increase agility and stability on rough terrain and combine the C2 (Composite Construction) suspension with Gridlock™ shoulder straps that adjust for custom fit.
Trekking Near or Far
Composite Construction (C2) eliminates back panel layers to reduce weight without compromising on structure or comfort. The pear-shaped Altra design holds the pack close to the body, minimizing load movement and backward pull for extended comfort and energy efficient movement under weight.
Thick Skin
All Arc'teryx packs use premium fabrics. The textiles used in the Altra series are chosen for durability. 210D nylon 6,6 ripstop fabric is tear-resistant and long lasting; heavier weight 500D aty nylon 6,6 protects high wear areas and resists contamination from dirt, snow and water pick-up.
Suspension Details
In larger volumes, 62-65L, 72-75L and 85L Altra packs offer full adjustment of the shoulder straps with GridLockTM, a unique system that adjusts straps for both width and height. In larger volumes, 62-65L, 72-75L and 85L Altra packs offer the rotating Load Transfer Disc™ that distributes weight to the hips on uneven terrain.
Efficiency
Space efficient compartments, one-handed timesaving closures and pocket configurations make Altras the lightest weight, fully featured bags in their class. Wingman™ side pockets wrap over the hip and are accessible without taking off the pack.

[@DZeeSea]

I use my Altra 65 for everything. I like most of the features, but I think that at that price range it should come with a compactor bag to keep the inner content dry and also add a rubber finish at the bottom of the pack because it is insanely slippery on flat surfaces and is hard to clean since it is made of the same fabric that is used on the backpack. Finally, the top handle that is close to the camel pack zipper is hard to pull out beneath the top cap when commuting. It should either have another side handle or make the top one easier to get so that it is easy to hold the pack with one arm.