Microfiber Cleaning Cloth: Designed of ultra soft micro threads, Costa's hermit cloth is perfect for taking care of sunglass lenses. On-The Go Convenience: The Hermit cloth features branded silicone casing that keeps your Microfiber Cleaning Cloth protected. The added clasp is perfect for latching on to bags and backpacks so it's always on hand when you need it. Package Weight: 7.0 grams Born on the water in 1983: Costa Sunglasses for men and women is celebrating 40 years of making the premium sunglasses on the planet and protecting the watery world we call home