The Women's Ultra Pro Vest is perfect for long distance training and racing. It's engineered to fit a woman's frame and available in four sizes to ensure a personalized fit. There are four different soft flask specific pockets so you can customize where you carry the included two 500ml Quick Stow flasks. Made with 3D micro-mesh, the Ultra Pro ensures proper ventilation and comfort over the long-haul. It offers plenty of front cargo storage for easy access to fuel and a secure zippered pocket for your phone. The back and sides include several stretch overflow pockets for extra layers or essentials and it can accommodate a 1.5L reservoir for longer self-supported runs. With reflective accents throughout, you'll always be visible on early morning or late-night expeditions.