GSI Outdoors - Glacier Stainless 5 Fl. Oz. Classic Flask, Superior Backcountry Cookware Since 1985 FILL YOUR FLASK: The Glacier Stainless Flask is the flask of your dreams. Made from pure 18/8 stainless steel, it holds up to 5 fluid ounces of your favorite adult beverage. TOAST TO THE STARS: The easy to use flask has a wide opening for simple pouring, letting you enjoy the party till the sun comes up. DON'T SPILL THE SPIRIT: Features a screw-top lid with keyhole lid retainer that ensures you won't lose a drop of your favorite drink. BUZZED BY THE BONFIRE: The Glacier Stainless Classic Flask includes a filler funnel, making it easy to top off. Weighs only five ounces, so you can take it anywhere. IT'S ALL ABOUT THE OUTDOORS: In 1985 three siblings motivated by their love for the outdoors founded the camping and backcountry cookware company GSI Outdoors. Three decades later GSI continues to bring quality cookware to outdoor lovers everywhere.