The Gear Vest is made for minimalist and engineered for athletes who want a high riding pack with no bounce \n Made from rip stop fabric and includes a built in whistle, and rear shock cord to store a jacket or layers \n Features nonstretch nylon chest straps to help eliminate bounce, front chest pockets, and a quick disconnect bladder for fills on the go \n One size fits most \n Includes 1L hydration bladder