Comfortable and convenient, the Hydro 45 Belt from Salomon is designed for runners who head out the door with one bottle of water and a snack or two. With an adjustable belt, and Salomon's Airvent System providing airflow for your back, the Hyrdo 45 Belt goes barely noticed on runs. The 45 degree angle of the bottle holder, meanwhile, provides quick and easy access to your water supply. With a zippered pocket for run essentials and energy, the Hydro 45 Belt from Salomon is a water belt ready to take to the road or trail. 20 oz 3D bottle from Salomon is included External pocket with zipper stores gels and energy supplies 45 degree angle of bottle holder makes drinking on the fly easy and natural Airvent System keeps things cool where the pack comes into contact with your body .