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Thanks to a recent collaboration between Oakley and The Macallan, the flask is no longer something to be concealed. It’s a “loud, raucous, 21-and-over celebration of technical design and discerning taste.” The Flask is made with food-grade steel, carbon fiber and aerospace-grade aluminum. Other features of the flask include a rubberized bottom for non-skid grip and a small rectangular air vent on the side of the funnel allow for ventilation. You can purchase The Flask right now for £600.

Check out the rigorous testing video below:

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