Osprey Packs Hydraulics Hydration Reservoir - $33.95

Custom-fit suspension systems are Osprey's bread and butter, so it makes sense that the Hydraulics Hydration Reservoir is shaped with a rigid backer plate to prevent any interference with how your pack fits and carries. The durable MPE reservoir material keeps water tasting exactly the way it should, and the magnetic bite valve keeps the hose secure when you're cruising up the trail. - $33.95