The CamelBak Women's Circuit Vest™ 50 oz Hydration Vest is light and comfortable. It includes a 1.5-liter CRUX reservoir that delivers 20% more water per sip and is lighter weight for additional comfort. The secure zippered pocket fits most smartphones and the open front harness pockets are specifically designed for Quick Stow™ flasks should you need additional hydration. Designed specifically for women, the front panels include four different soft flask sized pockets so you can customize where you carry additional hydration or gear. The CamelBak Women's Circuit Vest™ 50 oz Hydration Vest comes in a one size fits most design to ensure a stable fit over any terrain.