The Women's Ultra Pro Vest answers the need of female athletes who demand hydration, gear organization, comfort and performance during long distance training and ultra racing. Designed specifically for women, it was engineered to fit a women's frame and is available in four size options to ensure a personalize fit. The vest is made with 3D micro-mesh-an ultra light material that guarantees maximum airflow and comfort on sweaty runs. The front harness comes with upper and lower pockets so you can customize where you want to carry the two included 500ml Quick Stow flasks. It also offers plenty of front storage pockets for easy access to fuel, and a secure zippered pocket for your phone. The back features several stretch pockets that can store extra layers on cold days or accommodate an additional reservoir for longer self-supported runs. With reflective accents throughout, you'll always be visible on early morning or late-night expeditions.