From the Bog Dog team:
Combining enhanced stability, fit & versatility, the Adv Skin 12 gives our best-selling hydration vest a new look with sublimated graphics. Fine-tuned for demanding endurance races and runners, it provides easy access to hydration, long-distance comfort and freedom of movement. With 12-liter capacity ideal for longer trails (60km+).
Best for: Few days
Bag Width: 0.39 IN
Bag Depth: 11.42 IN
Volume: 12 L
Weight per unit: 9 OZ
Weight Including Accessories: 11.4 OZ
Activities: Trail running
Hydration Solution Included