The 15L Bullet is a grab and go daypack. One day it’s a trip to the pool, the next you’re stuffing jackets and snacks into your backpack for a day hike. This one is built with a fabric originally made for high-performance sailing. The Bullet Ruck thrives on short trips away from home, when you’re traveling light and fast. Now with X-PAC and AquaGuard zippers, your gear will be locked down and ready—monsoons, dust storms, sand, mud—whatever the hell the road (or jungle) throws at you. Features Opens flat, making it easier to pack and organize Streamlined Design with only a single compartment and 3 interior pockets Hydration bladder clips into the interior d-ring with a carabiner and feeds the hose through the exit port under the top handle of the backpack YKK AquaGuard zippers to keep out rain, dirt, and sand Weatherproof: X-PAC VX21 is our most waterproof material, paired with some of the best zippers on the market Specs + Materials Primary Material: X-PAC VX21 Interior Material: 400D Pack Cloth Dimensions: 10.75"W x 18.5"H x 5.5"D Weight: 1.3lbs External Slant Pocket: 10.5"W x 11.5"H Internal Mesh Pocket: 10.5"W x 11"H Internal Cordura Pocket: 10"W x 6.75"H