Sports Water Bottle Belt by Run Baby LOTS OF WATER: because this is is what its all about, and so our running belt with water bottle features 2 x 10 oz BPA Free Water Bottles, with easy access drinking nozzles, for fast hydration, FORGET YOURE WEARING IT: so snug and lightweight is the Run Baby Hydration Belt for men and women, that you will completely forget youre wearing it, until you need a quick drink of water, ADJUST TO FIT: Run Baby Hydration Belt fits waist sizes up to 45". The dual fastening velcro strap with reflective loops, allows you to snugly adjust for maximum comfort, and no bouncing or chafing, DESIGNED BY RUNNERS FOR RUNNERS: so its going to fit your Smart Phone, but you may need to remove some of the larger cases on smartphones like iphones 5s, 6, 6+ plus Samsung Galaxy, Android, Apple, HTC and Microsoft. This runner water bottle belt also provides ample room for money, cards and keys too 100% LIFETIME WARRANTY  because we dont just make the best hydration water belts on Amazon, we guarantee them, with our No QUIBBLE, Superior Customer Service Standards!