Setup: Your Ray-Ban Wayfarer RB2140 sunglasses require no complicated setup. Simply remove them from their protective case, unfold the arms, and place them on your face. Ensure they sit comfortably on your nose and ears. Compatibility: These sunglasses are designed as a Unisex product for adult users. Their timeless design makes them compatible with a wide array of personal styles and outfits. Care:1. Cleaning: Use a soft, lint-free cloth (ideally the microfibre cloth provided with the glasses) to gently wipe the lenses and frame. For stubborn smudges, lightly dampen the cloth with clean water or a specialized lens cleaning solution. Avoid harsh chemicals, paper towels, or abrasive materials, which can scratch the lenses.2. Storage: Always store your sunglasses in their original protective case when not in use. This prevents scratches to the lenses and frame, and protects them from dust and accidental damage.3. Handling: Avoid placing sunglasses face down on hard surfaces. Hold them by the frame when putting them on or taking them off, rather than by the lenses, to minimize smudges and strain on the hinges.4. Temperature: Do not leave your sunglasses in extreme heat, such as on a car dashboard in direct sunlight, as this can deform the frame material.