LEAKPROOF HYDRATION BLADDER: Included is a 2-Liter fillable water bladder; Durable, kink-free sip tube and push-lock cushioned bite valve; Large 2-inch (5 cm) opening for ice and easy cleaning.
CUSTOMIZABLE COMFORT: Backpack for men, women, and youth; Adjusts to fit all frames comfortably; Notched foam stabilizer and mesh covering means you can wear this pack for hours.
AUTHENTIC NATIONAL PARKS FOUNDATION: Showcase your favorite park with the only 100% authentic National Park Foundation hydration backpack.
Quench your thirst for adventure with this lightweight and comfortable hydration pack. It's the perfect companion for day trips or overnight outings.