Combines chest bag versatility with hydration pack performance; a lightweight hiking backpack for women and men with ample front pouches for essentials Fits a 2.0L bladder (not included) to keep you hydrated on the go; a water-ready running vest for men designed for clarity no water bladder included Crafted with mesh padding and airflow channels, this hiking backpack men rely on delivers lightweight comfort for gym, runs, hikes, marathons, and more This chest bag for men and women offers a secure, bounce-free fit with adjustable straps ideal for running, cycling, and outdoor activities on rugged terrain Water backpack for running features reflective straps for visibility in low light, a water-resistant shell, and headphone jack access for convenience.