Enhance your running distance with the spacious Asics Fujitrail 15L Running Backpack, featuring advanced features and capabilities. Benefit from a built-in stabilization system that minimizes bouncing of items, and experience effortless opening and closing with magnetic buckles designed for one-handed use. Plus, stay hydrated with two 500ml soft water flasks included. Main fabric:78% Polyester (Recycled) / 22% Elastane / Lining:100% Polyester (Recycled) Features: TASUKI SYSTEM is designed to help reduce bounce 15 liter capacity, plus expandable 5L sub-compartment 2x500ml water flasks included Trail pole storage pockets on the back Magnetic buckles allow opening and closing quickly with one hand Ergonomic pocket design that's practical for storing accessories Hydration compartment can store a water bladder up to 2L (not included) Ergonomic pockets for gels, torch and other accessories Reflective details are designed to help improve visibility in low-light conditions