Material: 100% polyester. A practical backpack for hiking, excursions and travel! Length: 40 cmWidth: 22 cmDepth: 15 cmVolume: 2 LFluid system with pouch and hoseTrack Hydration Backpack - backpack by Swedemount. Practical main compartment with inner compartment. Roomy front compartment. Two mesh side compartments. Adjustable shoulder straps with pockets and buttoning. Hardwearing material perfect for hiking and everyday life.