Using your Tifosi Aethon sunglasses is easy. Just put them on and adjust the ear and nose pieces for a comfortable fit. When you want a different look, you can remove the brow bar. To keep them in good condition, always store them in the included case when not in use. Clean the lenses with a soft, microfiber cloth to avoid scratches. Don't expose them to extreme temperatures or harsh chemicals. If the rubber parts start to lose their grip, you can clean them with a mild soap and water. Enjoy your sunglasses and stay protected while you're out and about!