The Nomad running hydration vest pack is made from GRS certified recycled ripstop fabric with a water-repellent finish. It includes GRS certified RPET lining and reflective elements for better visibility. This pack is designed for long-distance running, trail use, and lightweight outdoor activities. The back of the vest has a breathable mesh design for comfort. It includes adjustable shoulder straps and two front chest pockets for bottles, small accessories, or a mobile phone. Inside, there is a separate compartment for a 1.5-litre hydration pack not included . Volume capacity: 5 litres.