The chest harness leaves your hands free and make the radios easily accessible Shoulder straps are adjustable to fit for men,women and kids. The two radio pockets also can be adjusted to fit any size of portable radios.One back pocket and One front pocket offer some other small storage like for backup batteries,pens, markers,flashlights, phones, small tablets etc Made of durable nylon material Wide Application: Concert shows,Ski Patrol, search and rescue, Refinery, Plant Safety, Construction, Personnel, Event Management and Hiking, Camping, Fishing, Hunting etc.