When you're going all out to win, this vest keeps up. Whether you're a hardcore ultra-marathoner, weekend warrior, or testing your personal limits – the Women's Zephyr™ Pro Vest is engineered to maximize your comfort and performance. It has race ready features, like mesh zones for ventilation, stowable trekking pole quiver, and dual adjustable straps that give you room to customize. The torso length is specifically designed to fit a woman's body, and we've infused every detail with ultra-light materials that are engineered to last hundreds of miles. The polygiene antimicrobial treatment helps your vest smell better longer. And reflective accents ensure you're visibility in low-light conditions, so you can stay safe no matter where you are. Everything you need to push your limits – and then push them again the next day.