Mono Keeper

Adjustable non-conductive monofilament like cable designed to be worn extended at regular length or “zipped” for a custom fit to the back of the head.  Features: Adjustable, monofilament-like cable 14″ adjustable cable length extends to 14″ and shortens to approximately 9″ Available in universal silicone ends accommodating most temples sizes Durable, lightweight, low profile, waterproof Non-Conductive Keeps sunglasses secure  Tip: Use an alcohol-based hand sanitizer to apply Keepers to your eyewear for easy application and secure fit.