this past summer my dad and i hiked the 115 miles of the AT in Shenandoah Nat Park. i used this pack and it worked amazingly. we were doing about 20 miles a day... depending on weather and terrain... and it held my 28 pound load perfectly. the suspension system is amazing and distributes the weight very well among your shoulders, hips and back. though the fabric may seem thin and puny it is super tough and very resiliant when it takes a hit. if your not a member of the pack everything u can find crowd then this pack has enough room for your gear and can bear the weight well. the mesh outer pocket is very good for essentials u need at your fingertips and the pockets on the hipbelt hold snacks and other small items very easily. the top section of the pack is surprisingly roomy and even when full contours well with the main compartment. bottom line: its roomy, comfortable, strong, my number 1 choice as a short term expedition pack, and perfect for everyone from novice to expert

For the medium size hard back shell is 23 inches long and 11 inches at it’s widest. There are adjustable straps in the shoulder, chest, and waist. The main pocket is a stuff stack a good size to fit gear for over night trips or as a larger day pack. There is an outer sleeve that held my extra shoes nicely. The 2 mess waterbottle holders are huge and accommodated 32oz bottle with ease. All of the compression straps work laterally, though there are none that compress horizontally. I used this pack for a weekend as a day pack in the slot canyons of Escalante, Utah. It worked well in tight spaces and took the abrasion of scraping against the canyon walls. It breathed incredible well, though the weather was not hot and I am not a sweaty person. I was not sore in the shoulders or the hips after 2 days of use.

I like how lightweight this pack is, and the price is very reasonable. It would be even better if it was more rugged, but that's the trade-off for lightweight. I use this pack mostly for climbing weekends, like at Joshua Tree and Tahquitz in SoCal. It has just enough room for rack and fluids and snacks. It can carry coiled up rope on top too, by strapping down under the top lid. But most of times I don't mention that, just saying there's not enough room for the rope and therefore someone else would have to carry to that. This backpack size is perfect!

This is the best ultralight backpack ever! It came to either this pack or the granite gear vapor trail. My 2 friends have the vapor trail and I like this pack way better. I hiked over 10 miles a day, for 4 days straight through rough mountain terrain and my load was carried very well. My pack weighed about 25-30 lbs. The waste belt has mesh zipper pockets so I store power bars or granola bars since the bars flex with the pockets around my waste. The big mesh outer pockets are great for storing extra gear that you’re too lazy to put in your pack. I keep my rain jacket and map there for easy access. Also, if I have any wet gear the mesh pockets allow it to dry while I'm hiking. The 2 water bottle pockets are deep and held my 1-liter Nalgene bottles very well. The harness and straps that stabilize the pack are the only kind I’ve seen like it. When you bend and twist your torso the harness at the bottom moves to adjust the load better and gives you more flexibility. Also, this pack barely weights anything compared to other packs.

I used this pack this weekend on an overnighter, and well it was good I guess. I had heard that the "ultralight" packs were good what they were designed for and not much else; this was my experience. The G pack is super light, maybe even ultralight. It carried what I needed, maybe it carried a little more than I needed. The weight I saved by using the G pack was lost by me just packing more crap that I didn't need. While the G pack saves on weight it lacks luxury. My back and shoulders still hurt like hell. I thought it was cool that even though the packs main compartment wasn't huge Gregory added the out side netting stuff. I could fit all my essentials in the main compartment and then every thing else on the out side. I put one of my sweet ass moonstone shell in the netting stuff on the hike up and I think that zipper must have rubbed or some thing cause when I got home there, there was a hole in the ultra light fabric where my coat was. I think this pack is good if not great for what it was designed for but you may have to re-think some of your ideas about backpacking before using it.