I have had this pack for 2 years now. I primarily use it for distance running but have used it mountain biking, a daypack on a backpacking trips, snowshoeing, I have drug it up a big wall climbing, and as just a water pack on camping trips. The pack fits my back well and the built in rain cover has come in handy a lot! I can tighten the buh-jesus out of the pack so nothing moves around when I am running. The water bladder is almost retired as it leaks a bit, but after 2 years of solid use and abuse I can't complain. The pack is holding up like a champ. However, when running or hiking without a shirt on, the mesh will tear the shit out of your back. So I wouldn't buy it again for that reason.
"Well designed, well constructed hydration pack"
I purchased this pack after doing quite a bit of research online and I purchased it from Moosejaw because they had the best price.The pack does everything it's advertised to do. I really like that the reservoir disconnects from the drinking tube for filling. The handle and wide mouth make it easy to fill with ice from the fridge.Storage capacity is substantial, I have yet to fill it up on any hike or bike ride. The compression straps work very well to cinch down lighter loads.The articulated panels on the back do a really good job of keeping your back dry and the water cold. I purchased the insulated drinking tube separately and it helps, but doesn't alleviate, that first warm gulp of water. It's a little snug in the drinking tube sternum clip, but it still fits in there one-handed.I was the first kid on my block to get one of these.