Perfect for day hikes the camelbak rim runner 22 hydration backpack lets you carry extra layers lunch water and all the essentials in its one main compartment and a separate essentials pocket it offers crux reservoir with a 25 litre 845oz capacity an ergonomic handle and an onoff lever that helps to prevent leaks for quick access to energy snacks there is a load bearing hip belt with cargo pockets and the rucksack has stretch overflow exterior pockets plus to let you attach trekkin