sunglass lanyard with neoprene material which is very soft and comfortable when we wearing it. Even be pulled suddenly with the width neoprene we wouldn't get hurt. That's very safe for us and the kids. And that will be ok to print any printing/image or logo on it. Which can also be the fashion item. Usage: As a survival or giveaways items are welcomed. When we hiking,Camping or climbing we can use this item to protect our sunglass. Material: neoprene. Size:customized Logo: your logo will be OK to print or stitch on the neoprene glass strap,silkscreen,heat sublimation,heat transfer,emboss are OK. Color: any color you want Package:each in an opp bag, 500pcs in a carton.