AiRunTech Waist Pack with Water Bottle Holder, Fanny Pack/Pouch Bag for Women Running, iPhone Samsung Waterproof Purse Pockets Running Belt for Fitness Jogging Accessories Expandable design bottle holder contains an adjustable elastic loop that can be tightened over your water bottle to prevent bouncing and falling out. Easy access and no shaking during your run. Fashion, multi-function and practical design, and comfortable to wear. Use upscale nylon cloth,it is not easy to be scratched. Suitable for hiking,cycling, travel, leisure activities, entertainment(reflect strongly under vehicle lights, ensure safety night running ), and perfect as gifts. Really big enough for all of your stuff with room to spare, with smaller compartments in the main pocket perfect for carrying your phone iPhone 7/6S plus Galaxy S5,S6,Note 6, up to 6.6" even large mobile with a case, keys, cards, wallet, running accessories etc, independent inner pocket with key hook prevents phone screen scratching. Easy adjustable personalized fit: fits great for waist from 23-46 inches,easy access extra strap on reflective band for small waist, which won't loose even if you are running.If you need an additional elastic band extender,please send us an email! 100% Satisfied Guarantee - Buy running waist pack with confidence knowing that no matter what, we've got your back! Whether you need a replacement, or the fitness belt just isn't working out,If you don't like it, just send us an email and we will give you a full refund!