Additional Details ------------------------------ Bullet point: UNISEX HYDRATION RUNNING VEST: Elevate your trail running to marathon distances with the new and improved Active Skin 4-liter-by-volume hydration and storage vest for men & women. It’s user-friendly and comfortable, featuring the same soft, breathable 3D air mesh fabrics you love, an ultra-secure fit, and revamped chest pockets for seamless access to your hydration flasks.