Smartphone pocket: velcro pocket designed to take most phones up to size 6.9 inches/17cm. No Bounce: Your phone will fit snugly in to the pocket and will not bounce during exercise. Lightweight & Breathable: Designed is made to be as lightweight as possible using high quality materials with heat dissipation holes to allow heat and moisture to escape and allowing you to move freely on your run. Adjustable fit to fit almost all sizes, male and female, using the adjustable straps to provide a tailored fit for all body shapes and sizes Reflective logos and trims on the front and back of the running vest provide the runner with the added bonus of enhancing your visibility when out on the roads during hours of low light or darkness Premium reflective fabric - with a smooth finish Zipped Key pocket allows you to zip away your keys in a secure way for the duration of your run Headphone slot is positioned at the bottom of the smartphone pocket which allows you to easily connect your headphones to your phone Designed for running, cycling, walking and many other outdoor activities where you want to ensure your phone and valuables are kept safe and secure at all times.