Carson's Neoprene eyewear retainer is made with high quality neoprene fabric. This neoprene material will feel comfortable around the neck when wearing for extended periods of time. The flat, thin design is easy to store and not bulky to wear. Carson's glasses strap will remain durable and secure, keeping your eyeglasses or sunglasses safe during your outdoor activities. Shop now and view our assortment of fun patterns and colors. Fits most eyeglasses & sunglasses. Caution: Handwash with mild detergent & air dry only.