The Pinnacle Pro 12L blends style and function with its innovative slider sternum cords and Quick-Fit™ adjustment system that allow to you dial in the perfect fit while on the run. Crafted from soft, yet durable quick-dry fabric plus a breathable air mesh interior, that guarantees superior comfort. With spacious power mesh pockets for ample, accessible storage, it includes a 1.6L Nathan x Hydrapak insulated hourglass bladder and front pockets that compatible for most soft flasks.