When not in use, they are secure and at-the-ready, resting on your chest. Lightweight and vented for comfort, the harness prevents your binocular from swaying and swinging while running or climbing over rough and uneven terrain, so they won't hit into rocks or get snagged on branches and brambles. The harness is outfitted with multiple adjustment points for a custom fit and maximum comfort, and quick release clips allow you to easily attach and remove the binoculars.