Illimani94 wrote a review of Osprey Packs Volt 75 Backpack - 4,577cu in on May 19, 2013
Just back from a week backpacking in the Black Range (southern NM), used the 75. I'm usually wary of packs with this much suspension adjustment; usually the carry gets sacrificed. The Volt adjusts in minutes w/o tools - not just back length but also HIPBELT pad length - and once adjusted the pack carried up to 48 lb pretty comfortably. I was impressed, especially for a pack that weighs less than 4 lb on my scale.
Some features are less than optimized. Compression doesn't work very well, and I'd like more strap length so I can stow my foam pad behind them. And the pack never got that "glued to my back" feeling; too much random movement for use on technical terrain. The hipbelt pockets are useful stash for food, sunblock, compass, altimeter, etc, but once the pack is on it's really hard to close the pocket zips one-handed. Top lid can't be easily removed, but it does float and it is HUGE. Lots of stash there. Mesh pockets on back and sides are handy for need-quick gear. Oh, and the hipbelt straps are too long - I mean like FEET too long. Who needs this much hipbelt?
Bottom line: a lot of little things could have been done better, and that's unfortunate. For a 4 lb pack designed to fit a wide range of people in a single size (and <<$200) this pack has remarkable carry. It doesn't dig, slip, or drag; it's just kind of there on your back. The little things bug me because the main pack function - hauling your stuff - is almost unnoticeable. For a trail pack it's definitely worth a look.