Celebrate your outdoor adventures with the GSI Outdoors Boulder Flask! Its co-polyester resin construction is crafted to withstand any bumps, drops and dings along the way. The wide mouth design makes it easy for both filling up or pouring directly into a cup–plus an attached hinged silicone cap ensures a good grip even in cold temperatures. This BPA-free flask also features graduation marks molded on its surface, so you can easily check how much beverage remains inside without having to guess. Whatever your “poison,” you’ll enjoy on-the-trail sippin’ without any foul taste from the flask material. Don’t leave camp without this handy companion by your side!
