Made for Evolution this is a new design frame cord featuring a quick release toggle (see second image) – this means you can remove your eyewear without lifting it over your head (useful when wearing a hat or helmet). The rubber end is adjustable to fit any size of temple (arm) for all eyewear including those with large temples. Black colour made from 100% neoprene. Simply attach the frame cords to the temples of your spectacles / sunglasses and they will hang securely down when not in use.