Imported Super Floating - Our neoprene eyeglass strap has additional almost invisible EVA floating material inserts, which makes the glass cord extra floatability, even for heavy glasses. Your glasses wont drown with our eye glass string strap For Wide and Narrow Temples - Unlike all others, our glass strap can hold the glasses with medium and large temples, and also lanyard glass has extra rubber caps, which makes the sunglass strap a good fit for thin temples Adjustable Length - Unlike other brands, our eyeglass string strap has a length adjuster. Eyeglass lanyards can be fixed behind your hand or can be worn around the neck. The full length of eyeglass chain for man is 22 Double Stitched Tips - The tips of our eyeglass holder strap is stitched with a special double stitch that does not separate. Glass lanyard will fix your glasses while working out. Eyeglass holders around the neck are also good for day to day use Premium Neoprene - Sigonna eyeglass string holder strap is made of premium-class neoprene, which makes it comfortable to wear. Glass holder strap is elastic, soft and pleasant to touch. Eyeglass strap holders to wear will not irritate your temple and the area around your neck