Surplex 6 Pack Neoprene Elastic Cord Retainer Strap Band for Sports Eyeglass and Sunglass, Eyewear Holder Strap Glasses Head Band Floater Anti-Slip Elastic Cord Rope String Holder for Men Women Kids

They're handy to have whenever I'm at the beach or going into open water. They can definitely hold securely but are effectively infinitely adjustable too. Multi-pack so I can leave one dropped in to the various bags I use and know they'll be on hand.

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Used every working day for my expensive prescription safety glasses.Trustworthy & strong. no problems at all, great size, great strength. 5\5 IMHO.

These a very large,I have to put the end right up near the lenses to hold my glasses,even my husband has to pull them up quite far

Should've listened to reviews far too short and didn't sit on ears comfortably

it doesn't seem to be particularly stretchy but it's well-made and simple and does the job well. I think with an elastic band I would have been tempted to wear it tightly when there's no need.

These straps were great for my boys during their summer sailing and kayaking. A good fit and they didn't lose their sunglasses

I like that they hang from your neck with ease. I was disappointed that they did not fit all legs of sunglasses, but I think they would fit the majority.