CamelBak Arete 18 Hydration Backpack 1100cu in

When heading out for a day hike, you're faced with the age old dilemma bring a bulky backpack that could be overkill, or just carry a water bottle and hope for the best. Luckily, there's a third option in the CamelBak Arete 18 Hydration Backpack. This ultralight pack is barely noticeable on your back when empty, and it offers enough space to stash a rain jacket, first aid kit, and some snacks. Of course, it also includes a CamelBak hydration system that sits flat against your back for a stable, balanced feel.You can turn this pack inside out to turn it into a reservoir sleeve on longer treks. That means it serves as a convenient reservoir storage option when you're backpacking on extended camping trips. And when you want to go on a short excursion away from base camp, just turn it back inside out and you have yourself a compact pack for side hikes.