CamelBak

Arete 18 Hydration Backpack - 975cu in

If you're the type of the person who calculates combined weight and cuts off tags to save half an ounce―OK, that's a bit extreme―then CamelBak's Arete 18 Hydration Backpack may be the solution for you. Tipping the scale at a whopping ten ounces, this slim pack will fit in perfectly with your lightweight obsession. Use it as a reservoir sleeve for CamelBak's already lightweight two-liter Antidote reservoir or stuff in your own summit essentials. Either way, the Arete's DWR and PU coated 70D diamond box nylon construction will protect your gear from wind and rain without weighing you down. In fact, when the 975 cubic inches of compartment space is largely unoccupied, tighten down the two compression straps for a denser and less-bulky pack. From extra water to sunglasses and snacks, the Arete may be light, but its sure got your back when it comes to carrying trail essentials.