• Structure in nylon and ventilated mesh fabrics • Very lightweight and breathable • Reinforced panels for comfort and convenience on the ergonomically designed shoulder straps • Two pockets at the front on the shoulder straps, including one with a zip • Three pockets at the back: two for storage and one for the hydration bag • Sold with a 2L hydration bladder • Closed with two clips at the front • Adjustable straps ensure a good fit • Guides and routing for the hydration tube • Reflectors help you be seen at night or when it is overcast