Nice quality seems very durable, nice locking mechanism. Tube does seem to keep water from heating up. only real knock on it would be it seemed a little hard to click into the hydration engine (bladder) and also to remove was difficult. I may have a defective hydration engine thought as it leaked around the connection point and the company is sending me a new one so that may resolve the difficul
This review was written in the old system and had content requirements that are different than reviews written today.