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. Another key addition is our Magnetic Tube Trap that works with all of our reservoir tubes. We've included Air Support Back Panel, lightweight materials, and max ventilation to keep you feeling and looking cool on the trail. Repurpose Gold Sustainability Badge: Made with recycled materials, made with safer chemicals, and designed to preserve resources and diminish disposables. Finally, our reservoir with Quicklink System ensures you get all the hydration you need on the move, with no fuss. Air Support Back Panel: Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your backMagnetic Tube Trap: Keeps your tube secure and accessible when you need itRemovable Waist Strap: Added stability when you need it3D Vent Mesh Harness: Lightweight and breathable with added cargo. Designed for all-day comfort.Helmet Carry: Stow and secure helmetStretch Overflow Pocket: Quickly stash or shed an extra layerIntegrated Carry Pockets: Keep your tools and repair kit organized