The Paragon 40oz Alloy™ Insulated Reservoir and Hydration System is a game changer. The comfortable, easy to use, ClickSip™ valve prevents frozen hoses + lukewarm sips. Stay hydrated with 40oz of ice-cold water for 24+ hours, thanks to our double-wall vacuum insulated BevGuard™ technology and ColdKey™ straw technology that ensures plastic isn't sitting in your water all day. Grab an additional reservoir for your Paragon or replace an old hydration bladder.