Made in the USA from recycled fly line these keep your sunglasses from wandering off.

The original Flyvines Sunglass Retainer is made out of recycled fly line, with shrink tubing on the tips.  It measures 14in, which sits right under the chin, to keep them out of the way.  These work great, but are meant to stay on, if you take them on and off, the rubber tubing will breakdown.  They also do better in colder climates, as sunscreen can break down rubber tubing quickly.