Review on CamelBak HydroBak Black Mil Spec Reservoir by Peter Sullivan

This was required for some military exercises. I haven't had any leaking issues like some people with other brands. However, I would strongly recommend purchasing a mouthpiece case. If you're taking this anywhere you'd put it down, go ahead and order a mouthpiece cap. Also, this size is good for an activity or two (short hike) but not big enough for a full day. If you want something to last all day or if you drink a lot of water, buy one size up. I had about 3-4 refills a day. All round great product and I have no problems with it!