Flasks make a great gift for any guy. The Cork Pops Nicholas Portside Flask is especially cool. Designed to resemble a porthole, this nautical-themed flask allows for an easy view of the contents. By being able to see directly inside the flask, you’ll always know when a refill is required. Holds up to 4 ounces of your favorite nautical beverage – be it scotch, cognac, or whisky? This flask is high quality and easy to clean.