The updated classic M.U.L.E. pack is partially built with post-consumer recycled materials and is designed for maximum stability on technical terrain. It features an Air Director™ back panel and ventilated harness for air flow and comfort, a 3-litre Crux™ Reservoir to keep you hydrated and 9-litre, organized cargo capacity that includes a tool roll, a stretchy overflow pocket and an exterior helmet carry.Features Fits torso length 43-53cm Waist fit: 66-116cm Air Director™ back panel channels air flow to keep you cool Lightweight and breathable ventilated harness Adjustable sternum strap allows for a customized fit and increased stability Magnetic Tube Trap™ keeps your tube secure and accessible when you need it Removable stability belt for additional fit and stability 5 exterior pockets Secure phone pocket keeps your essentials safe and easy to access Stretch overflow pocket allows you to quickly stash or shed an extra layer Integrated tool organization keeps your CO2 cartridges, patch kits and more right where you can find them Helmet and armor carry allows you to stow and secure your helmet, knee and elbow pads Elastic pump loop Reflectivity for safety in low light conditions Made with sustainable materials 3-litre Crux™ Reservoir features: Easy open/close leak-proof cap Leak-proof on/off lever lets you access water when you want it and prevents leaks when you don't Ergonomic handle for one hand fill Reservoir baffle creates a low profile fit for easy pack loading and less water sloshing 100% BPA/BPS/BPF free HydroGuard™ antimicrobial technology inhibits the growth of bacteria in the reservoir and tube (does not protect you from bacteria or other disease-causing organisms) Big Bite™ Valve is an easy bite and sip valve that self-seals after each drink, eliminating annoying drips Quick Link™ System makes it easy to remove the reservoir from your pack by disconnecting the drink tube with an auto shut off to prevent leakage CamelBak® Got Your Bak Guarantee™ – if they built it, they'll Bak it™ with their lifetime guarantee