Features： 1、Multiple Compartment: Designed with 10 exterior pockets, you can store all tiny items such as water bottles, keys, phones, cash, etc. These pockets also allow you to get things directly, extremely convenient. 2、Stay Hydrated: Equipped with two blue folding kettles that fit snugly in the back pocket, this running vest ensures you stay well-hydrated during extended runs and outside adventures. Shoulder spout for easy drinking. 3、Comfortable Fit: Fully adjustable shoulder and chest straps that guarantee the fit, keeping the vest from bouncing while running. Designed with a unique padded back section to allow airflow freely. 4、Lightweight For Running: Only weighs 170g/6oz super light, reducing much of the load during the running. When it comes to running, the shorter you plan to spend on the trail, the lighter backpack you'll need. 5、Widely Used: This sports backpack can be used for more than running and hiking. It is very suitable for almost all activities such as riding, camping, marathons, etc. Besides, reflective strips feature for added safety. Specification： Package List：