First 1 ordered the 2008 model - medium size. I am 5'8", it was a little too short. Returned and changed to the Large. Fit me well, but in the back of my head was unsure about the short bottle holders in the side. Wouldn't you know it but Go_Lite came out with the newer models and fixed the Holders. With return shipping and the additional $$ for it ending up costing $40 more but so worth it. Love the pack. Sits really well on the back, comfy and almost no bounce. Still running with it light, but I know as I load it down it will not let me down. Looking forward to the next year of training with it. If you have doubts - just buy it. Well worth it.

This is the best day pack I've bought and the last one I'll need to buy, other than longer trips or perhaps winter day trips. The weight and versatility is exactly what I needed. It works very well on day trips to tackle 14ers. It even compacts by folding in half and stuffed in the top part of my weekend pack to be used an any necessary day trips, like lake hikes or 14er ascents from base camp. I don't really like that there is only one pouch, but I'm sure that helps keep the weight down. I've not had a problem putting in my 2 liter bladder into the pouch. The tie downs on the front can easily carry a jacket and additional food or small gear in the pocket as well. I haven't carried ice axes, so I can't comment like UTClimber has done. To me, it does fit a bit small even for a large, but it's a small complaint considering its cubic space and light weight. I just love this pack. To give a comparison, my previous main day pack was the CamelBack HAWG.

this pack is replacing my previous daypack- a camelback daypack with so much padding and unnecessary stuff it was heavy even when empty. This GoLite one is very light and even thought it's smaller than my previous pack it holds more stuff.

Super light and form fitting, this pack is the great bag to hike that big trail you are looking to get up, or for those long trails or peaks you are trying to get up. It has a really cool feature in the mesh back of the pack that rests on your spine, your back forms to your hydration reservoir for a much better feel on your back. The hip belt pockets have a lot of room for hands on things you need and the chamber in the pack can hold a small first aid kit, jacket and camera. Great pack if you are looking something other than the traditional pack that is out there these days!

This pack is great for light and fast one day outings. I use it for trail running and climbing mountains. There is plenty of room for at least a gallon of water, a jacket or two, and food. The hydration pouch is a bit small, but a 2-liter bladder can be crammed into it. The hip belt pouches are handy for keys, sunscreen, and power snacks. The ice axe loops might be nice, but the pack is probably a bit too small for any outing requiring axes. The only improvements I would ask for is to lose the tow loop (seems useless), and have a more secure closure system for the back pouch, like a zipper. Overall, I'm very pleased with it, and it is holding up well even after squeezing through some chimneys.