If you haven't yet used the RevoMax Thermal Flask to go take a hike, you oughta. Check out what the people at Adventure Rig did with their RevoMax Flask. They also thought of something pretty cool our flask can do, other than be a great leak-free companion on your next outdoor outing Watch their video to see what it is. Not something a lot of parents consider when thinking about their beverage bottle buying - child proofing. Wanna keep those alcoholic beverages away from those underage kids of yours? Try keeping them in your RevoMax Flask.