Filson's newest take on the ever-essential hip flask, this 6-oz. stainless steel flask is wrapped in English Bridle Leather from U.S. tannery Wickett & Craig. Hand-stitched with waxed thread, it's designed to last for decades and will gain a handsome sheen with repeated use. Stainless steel is BPA-free and corrosion resistant, and the flask has a leakproof, screw-down cap that's hinged to the top for safety. You can't ask for more from a flask – except, well, what you want from your flask.