Raida Hydration Backpack -Ultra series offers capacity for Gloves, Rainwear, Valuable, snacks and many more while leaving room for a full 2 litres of hydration Bladder. The Ultra series uses premium materials to deliver the lightest pack weight possible. Raida Hydration Backpack can be used for motorcycling, mountain biking, hiking & Jogging. The secure zippered pocket fits most smartphones, while reflective accents keep you visible during all day & Night. With a one-size-fits-most design, the side compression is highly adjustable to ensure a stable fit over any terrain.