Phot-R Adjustable Head Chest Wrist Strap Mount Belt Kit for GoPro Hero 2 3+ 4 5
Once in the optical position, you can lock it off with thumbscrew included with your GoPro's housing. The strap adjusts and fits over ski gloves and cold-weather clothing. 1x GoPro Wrist Strap. 1x GoPro Head Strap.