The new Cloud Walker 18 is a clean and classic daypack, partially made with post-consumer recycled materials and perfect for day tramps and breezy adventures. It comes with a 2.5-litre Crux Reservoir for hours of hydration, a 15.5-litre cargo capacity for your gear with compression straps to stabilize your load and an adjustable sternum strap to customize your fit. The Air Mesh back panel gives you a close comfortable fit with plenty of ventilation.Features Torso fit range: 38-48cm Made with sustainable and ultralight materials Breathable Air Mesh for lightweight comfort and air flow Removable sternum strap offers a range of adjustments for custom fit and increased stability Cargo compression straps keeps gear close to your body for better balance and increased stability 5 exterior pockets Essentials organizer pocket keeps small essentials organized and secure Side stretch pockets expand for extra water bottles or essentials Secure zipped pocket Stretch overflow pocket allows you to quickly stash or shed an extra layer Tube trap managements keeps your drinking tube secure and accessible when you need it Integrated lashing points for attaching extra gear 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