Stainless steel is the material of choice in the brewing, food and winemaking industries because it doesn't retain or impart flavors, so your drinks taste just like they should--nothing more, nothing less.  GSI has paired the rugged durability of stainless steel with leather detailing that's perfect for protecting cold hands from the metal bottle.  The combination is a classic flask that will perform for years to come.  Screw-down, hinged top and filling funnel assure that you won’t waste a drop of your favorite beverage.