We just improved upon a classic - the Classic Light is exactly what your everyday ride has been missing. Lightweight meets heavy-duty for a pack that is durable, adaptable, and comfortable for any length adventure. The sleek design features a 2-liter Crux Reservoir with Quicklink disconnect and an extra 2-liters of cargo space. The Air Support Light Back Panel and a ventilated harness ensure effective cooling and ultimate breathability. The bungee overflow allows you to quickly stash an extra layer without missing a beat. With a secured zippered pocket to store your keys and phone, plus an adjustable sternum strap for a custom fit and increased stability, you have everything you need to hit the trail, stay hydrated, and have fun out there Lightweight and Durable MaterialsAir Support Light Back Panel: Designed with body mapping technology for efficient ventilation and lightweight comfortVentilated Harness: Lightweight and breathableIntegrated Tool OrganizationSecure Zippered Pocket: Perfect for keys, phone, or other essentialsBungee Overflow: Quickly stash or shed an extra layerAdjustable Sternum Strap: Offers a range of adjustments for a custom fit and increased stabilityTube Trap Management: Keeps your tube secure and accessible when you need it.Light Loop: Clip on a light to make the ride to and from the trailhead safeHelmet Carry: Stow and secure helmetReflectivity: For low light safety