GSI Outdoors 10 oz. Boulder Flask

· 10 fluid oz. · Weight: 4.1 oz · Dimensions: 3.7 in x 1.1 in x 6.5 in · Constructed with copolyester resin and silicone bumper for shatter-resistant quality · Wide mouth opening makes it simple to fill, pour, and drink from · Hinged top seals nicely to prevent leaks · Convenient graduation marks allows you to know exactly how much liquid you're pouring into your flask