S4 Gear Lockdown X Hands Free Binocular Harness for use with Leupold, Nikon, Swarovski, Bushnell, Canon etc COMFORTABLE - Adjustable breathable harness is lightweight for maximum comfort and fit SECURE - Pliable cover is quiet and provides low-profile lens protection for constant optics security TENSION FREE GLASSING - Allows you to draw your binoculars to your face without tension ANTI-BOUNCE TECHNOLOGY - Safely secures binoculars to your chest preventing them from swinging or bouncing MICRO X - Fits Optics 4.5" to 6" in length