Setup: These sunglasses arrive ready to wear. Simply remove them from their protective case and put them on. No assembly or specific setup is required. Compatibility: Designed as a Unisex accessory for adults, the classic New Wayfarer style generally suits a wide range of face shapes, making them broadly compatible. While universal, individual fit may vary. The durable Nylon frame ensures robust everyday use. Care: To maintain the clarity of your Green Lenses and the integrity of your Black Nylon Frame, follow these simple steps: 1. Cleaning: Use a specialized lens cleaning spray and a clean microfiber cloth (often included with purchase) to gently wipe lenses. Avoid abrasive materials, paper towels, or harsh chemical cleaners, which can scratch the lenses or damage coatings. 2. Storage: Always store your sunglasses in their original protective case when not in use. This is crucial for preventing scratches to the lenses and protecting the frame from damage. 3. Handling: Avoid placing sunglasses face down on hard surfaces. Hold them by the frame when putting them on or taking them off to prevent bending or undue stress on the hinges. 4. Extreme Temperatures: Do not expose your sunglasses to extreme heat, such as leaving them on a car dashboard, as this can warp the frame or damage the lens coatings.