The Dakine Seeker 15L Hydration Backpack. When you're hunting the perfect tacky dirt sometimes you're riding in the rain. The combination of weather-proof materials and zippers plus a roll-top closure means you'll be protected no matter what happens in the sky. The pad, helmet, and spine protector carry options mean you'll be ready for whatever the trail does too. Dakine Seeker 15L Hydration Backpack Features 2L / 70oz Hydrapak® lumbar reservoir w/ quick disconnect High-flow Blaster bite valve w/shut-off Air Mesh suspended backpanel Removable DK Impact CE-certified Spine protector included Breathable ergonomic shoulder straps Roll top and side access Deployable helmet carry fits full face or trail styles Deployable armor carry straps Quick stash zippered side pocket Fleece-lined sunglass and phone pocket Internal organizer pockets Magnetic hydration hose clip Reflective logo