Material:Made from Nylon,environmental protection material, strong toughness, can be bent at will.

Polyamide

Polyamide

Adjustable Loops: You can adjust the rings to control the tightness of the silicone loops according to you eyeglasses

Safely Keep Your Sunglasses:Eyewear retainer can helps stabilize your sunglasses on your face ,especially when your face is oily/sweaty.

Application:Perfect for outdoor sports and daily life. Ideal for fishing, biking, hiking, and snow skiing or other sports enthusiasts.

kuou 4 pcs Safety Glasses Strap Universal Fit Rope Sports Glasses String Adjustable Eyewear Strap Eyewear Holder Glasses Holder Lanyards for Men Women