CamelBak® recently refined the dynamic insulated design with Slick Clips and a Ladder-lock handle that quickly and easily attach to the interior or exterior of any hiking day pack cycling pannier or climbing backpack. Because the durable polyurethane Omega™ Reservoir on the CamelBak® Unbottle® is fully insulated and covered with a rugged 500-denier Cordura® cover you can attach it to your pack exterior without any concerns about wear tear or lukewarm beverages (toss a couple of ice cubes into the wide screw top and you'll be sipping cool refreshment for miles). If you're tired of lugging water bottles or making other compromises with your favorite backpack the CamelBak® Unbottle® is a smart solution that clips into most packs without the need for a tailor or a bunch of extra attachment accessories.  Capacity 2 Litres.