1. Our uniquely designed sport glasses strap is made of silica gel hole and cable:
Silica gel can prevent slip.
2. The length is long enough to meet your needs for hanging glasses around your neck:
Glasses are not easy to lose and damage. You can move freely without worry your glasses.
3. The glasses strap is very light and does not drape down on the back of your neck, you barely feel it while using.
Festful Glasses Strap for Men Sunglasses Strap Eyeglasses Strap Eyeglasses Holder eye glasses string strap C-line Retainer Glasses Lanyard 3PCS Black - BXS08XHKW