Features: Air Support back panel with body-mapping technology for maximum ventilation in high-heat zones Magnetic Tube Trap keeps your hydration tube secure and easily accessible Removable waist strap adds stability when needed 3D Vent Mesh harness is lightweight, breathable, and offers added cargo capacity for all-day comfort Helmet carry system allows you to stow and secure your helmet Stretch overflow pocket for quickly stashing or shedding an extra layer Integrated carry pockets keep tools and repair essentials organized Additional Details: CamelBak Products, LLC ("CamelBak") has built its reputation by engineering products that exceed consumer expectations for quality and durability. The Got Your Bak(TM) Lifetime Guarantee covers all reservoirs, backpacks, bottles, coolers, drinkware and accessories from manufacturing defects* in materials and workmanship for the lifetime** of the product.