Running Vest, Adjustable Reflective Vest with Phone Holder and Storage, Lightweight and Durable Running Backpack, Hydration Vest Hydration Running Vests - Running hydration vest can equipped with 500ml water bottles (not included). And it also compatible with 1.5L hydration bladder (not included) with a hook and loop strap to securely fasten the bag's hose, you'll never have to worry about dehydration on long runs or hikes. A transparent, touch-screen, and face-unlockable waterproof phone pocket (up to 7") allows you to answer calls and reply to messages without removing your phone. Plenty of Storage - The sports hydration pack have several divisions to equip you with everything you need when exercising. On the front, it has 3 multifunctional pockets to store your mobile phone, flasks, key, energy supply items and wet wipes etc. At the same time, it has 1 compartment and 1 zipper pocket on the back, which store disposable raincoats, towels, 1.5Lwater bladder and others. Breathable, Lightweight Design - Our running vest is made of durable nylon and polyester, it weighs only 198 grams. the shoulder and back fabrics are designed with breathable mesh which absorbs sweat that breathable and comfortable, giving you a special sports experience. this mens womens running vest is ideal for long, intense outdoor activities. Adjustable Fit for All Body Types - running backpack features two adjustable side straps and two chest strap, this running vest offers a customisable, secure fit. Its adjustable nature is designed to minimize bouncing and shifting, preventing any chafing due to a poor fit. The chest adjustability range of this running vest for women or men: 25"- 45"/ 63.5cm-115cm. Please adjust the vest before exercise to achieve the best using effect. Safety Reflection - Do you like running at night? The hydration running vest has a remarkable reflective design whether on the front or rear, which can not only ensure your safety at night, but also help you finding enjoy-minded friends. There is also a rescue whistle on the chest strap in case of emergency. All of these allow you to exercise safely in low light conditions.