"Women's Nathan® Pinnacle Breeze 4L: The Women's Nathan Pinnacle Breeze 4L is a lightweight hydration vest designed for trail runners and distance athletes who need reliable fluid access during long runs without excess weight. The Quick-Fit™ size system lets you dial in the fit on the fly with micro adjustments, so the vest stays comfortable as your body shifts through different intensities and terrain. It comes equipped with two 14-ounce Nathan x Hydrapak flasks with extended straws for easy sipping without breaking stride, plus tiered mesh pockets that hold up to 20 ounces of additional soft flasks. An adjustable sternum slider cord keeps everything locked in place, and reflective hits provide 360-degree visibility for early morning or evening trail sessions.The soft woven and breathable mesh construction resists chafing during extended wear, so you can focus on the run rather than gear discomfort. Elastic cords hold flasks firmly in place as you navigate technical terrain or pick up pace, while lower pockets offer quick storage for gels, keys, or other small essentials. A front zipper pocket secures your phone and valuables without adding bulk. The Pinnacle Breeze 4L balances 4-liter hydration capacity with a lightweight feel, making it practical for training runs, tempo efforts, and longer adventures where carrying your own fluids keeps you moving.Why Our Fit Experts Love It""I took the Pinnacle Breeze 4L on a trail run through rolling terrain and appreciated how the Quick-Fit system let me dial in the fit without stopping. The mesh pockets stayed organized, the flasks were easy to grab, and the reflective details gave me confidence running in low light."" - Sabrina, Road Runner Sports Fit Expert, San Diego, CAWho It's Best ForThe Women's Nathan Pinnacle Breeze 4L is best for trail runners and distance athletes who need hands-free hydration for long runs and outdoor adventures. It works well if you want organized storage for essentials without the bulk of a larger pack, or if you're logging higher mileage and benefit from carrying your own fluids. VIP Family members can take the Pinnacle Breeze 4L for a 90-Day test drive with our Perfect Fit Guarantee."