A thinner version of EK"s most popular eyewear retainer, the Thin Cat Strap is also simple and genius: durable, high quality 3.5mm rope has rubber tubing on ends to secure glasses, and an adjustable rubber slider allows a perfect fit. Fully washable and long lasting, it"s sure to withstand even the most active lifestyles. Features: Prevents loss and breakage of eyewear Durable and washable Adjustable Lightweight Secure rubber tube frame grips Made in the U.S.A. Item Specifications: Materials: Nylon, rubber Dimensions: Cord, 21" length; 3.5mm diameter Color: Earth Tone (mixed forest, burgundy, and earth brass)