Adventurer Trail 30L Backpack by Eddie BauerThis easy carrying pack can handle everything from day hikes to minimalist overnight technical climbs. With its durable 70 denier shadow ripstop nylon construction and 30L capacity, it has ample strength and space for all your gear. The FreeCool trampoline airflow back panel cushions the load while keeping your back from getting overheated. Hydration is easy to maintain with the twin exterior sleeves plus the interior sleeve for a hydration bladder.