Clean and compact without sacrificing storage, the Camelbak Helena 20 handles your hydration needs. This hydration pack includes 20 liters total capacity and a 2.5L Crux™ Reservoir to quench your thirst all adventure long. Shed extra layers into a stretchy overflow compartment and pile on additional gear with external attachment points --no repacking necessary. Breathable Air Mesh: For lightweight comfort and air flow Cargo Compression: Keep gear close to your body for better balance and increased stability Essentials Org Pockets: Keeps your small essentials organized and secure Load Bearing Hip Belt with Cargo: Transfers weight to hips and offers additional storage Removeable Sternum Strap: Offers a range of adjustments for a custom fit and increased stability Side Stretch Pocket: Expands for extra water bottle or essentials. Secure Zippered Pocket: Keep essentials safe and easy to access. Stretch Overflow Pocket: Quickly stash or shed an extra layer. Women's Specific Fit: Torso length and harness shape designed to comfortably fit a woman's frame. Tube Trap Management: Keeps your tube secure and accessible when you need it. Made with Sustainable and Ultra Light Materials.