What makes the M.U.L.E.® 12 Hydration Backpack redesign so exciting? For starters, it's the perfect size, comes with premium hydration and has all the features to make every bike adventure awesome. In addition, we've supplied smart storage options, with an overflow pocket for an extra layer or wet rain jacket. We also supplied a removable stability belt for added flexibility and comfort. We've included Air Support™ Back Panel, lightweight materials, and max ventilation to keep you feeling and looking cool on the trail. Finally, our reservoir with Quicklink™ System ensures you get all the hydration you need on the move, with no fuss. DESIGN: Air Support™ Back Panel: Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back Magnetic Tube Trap: Keeps your tube secure and accessible when you need it Removable Waist Strap: Added stability on the trail or road 3D Vent Mesh Harness: Lightweight and breathable with added cargo. Designed for all-day comfort Helmet Carry: Stow and secure helmet Stretch Overflow Pocket: Quickly stash or shed an extra layer Integrated Carry Pockets: Keep your tools and repair kit organized Repurpose Gold Sustainability Badge: Made with recycled materials, made with safer chemicals, and designed to preserve resources and diminish disposables BPA/BPS/BPF Free Crux™ Reservoir with Quicklink™ System Camelbak’s Got Your Bak™ Lifetime Guarantee covering all manufacturing defects