Comfort Cinch has been upgraded with High Molecular Weight Polyethylene cord for extra strength and air mesh panel to prevent chaffing More capacity for long days in the mountains. The Mountain Vesta 6.0 boasts 13L of storage volume featuring a rear weather resistant main pocket with clamshell opening and large rear compartment spacious enough for a 2L reservoir. Rear zippered lat pockets are accessible while running. On the front of the body, users will enjoy several pockets, including a zippered weather resistant pocket for a phone. Also, pockets for two (included) Body Bottle 500's.