The Camelbak Arc 4 Running Belt is a lightweight way to carry along some hydration and essentials on your extended runs without keeping them in your hands. This comfortable lightweight belt provides the perfect cradle for four 8 oz Podium Arc Bottles. These Camelbak bottles are made with BPA-Free TruTaste polypropylene which won't add any plastic taste to your water. As you run, the JetValve self seals to eliminate splatters and spills as the bottles move up and down on your hips. There's even a pocket on the Arc 4 for your running essentials, like your phone, house keys or an energy bar. Front and back reflectivity helps keep you visible should your run start as the sun is coming up or it takes you into the evening hours. Help keep thirst at bay on your run with the Camelbak Arc 4 Running Belt.