Aonijie C9110 is a 20L Backpack that can be used for multistage self supported long distance running, such as Half MDS, Oman Desert Marathon, Tor De Geants, Racing the Planet series...

With weight under 600g, it is built with a main storage for water bladder& bulky items. It is also constructed with multiple stretchy storage pockets for accessories, energies and flasks. 

As lightweight & functional it is,  C9110 is also a good option for day hiking and traveling. 

Fabric: Nylon, Spandex, Polyester

Weight: 560g 

Size Recommendation: 76-118 cm chest circumference