Keep your beverages cool for hours on end in the sleek and clean CamelBak eddy insulated water bottle;Double-walled bottle insulates to keep your drink cool all afternoon; keeps condensation from forming on the outside of the bottle;Redesigned cap and Big Bite valve provide faster flow than previous versions; just bite and sip, and your beverage flows through the valve;Dishwasher-safe, durable, BPA-free & BPS-free;CamelBak Got Your Bak Guarantee: If we build it, we'll Bak it with our lifetime guarantee