Perfect for runs between 10 and 15 miles, the CamelBak Arc 2 bottle belt is just what you need to stay hydrated and energized. . 20 cu. in. of zippered cargo space lets you conveniently stash an energy gel or two and your ID. 2 easily accessible 10 oz. Camelbak Podium Arc water bottles keeps you hydrated on longer runs Revolutionary silicone JetValve self seals, so you can sip and store without missing a beat Secondary positive lockout prevents leaking Made from TruTaste materials that let you taste your beverage, not your bottle Includes Hydroguard protection to prevent bacteria buildup BPA free and dishwasher safe top rack. Elastic webbing waist belt with Velcro closure provides a secure, glove like fit with minimal bounce. Size small fits waists 28 32 in. 71 81 cm. Size medium fits waists 32 36 in. 81 91.5 cm. Size large fits waists 36 40 in. 91.5 101.5 cm.