Ryan Driver wrote a review of Osprey Packs Hydraform Hydration Reservoir on April 14, 2013
I use this bladder in my chugach 12 ski pack and love it . The had back and twist to tun on and off bite valve are awesome. I can not speak much to durability I have only had this out three days this season. The only problem i have had with it is the hose is too long to fit in the insulated sleeve in my pack but I think that is more attributed to it being such a small pack.