Costa Del Mar Fathom Cord Black/One Size AD

Despues de no mas de 2 meses el.plastico que sostiene el lente se rompio de ambos lados , es de un material muy delicado, mala calidad por el precio que se paga, tengo uno 10 veces mas barato que me ha durado mas de 2 años No lo recomiendo para nada.

Feel good and secure fit on to glasses, would by again

Great snug fit and adjustable use on both my costa and oakleys

Disappointed. I have other Costa Del Mar strings that slip over the arms of my glasses. That’s what I thought I was ordering but the pictures weren’t clear enough and instead these have holes in the string that go over the arms, and the CDM strings constantly fall off. Useless to me for these glasses as there is no bump at the end of the arm to hold them on

I bought this to secure my sunglasses while horseback riding. As other reviewers have noted, the part that attaches to your glasses is "librarian style," going over the arms of the glasses rather than plugging into the ends of the arms. Which means you have cord hanging down in front of your ears, which made them not ideal for wearing with a riding helmet (the cord and the helmet's chin strap get in the way of each other). So they don't work for what I bought them for, but they do work for making sure you won't lose your glasses, and it's easy to have your glasses hanging around your neck when you don't need them on your face. The adjustable slider is a good feature, it should ensure these fit any size head and neck.