You will have to pay shipping one way. We will pay for shipping on any exchanges. Please allow one to two (1-2) weeks for returns to process. If you need to review your return or have any specific questions please send us an email at: shimonim909@gmail.com depending on where you live, the time it may take for your exchanged product to reach you, may vary.Avoid using rough materials such as facial tissue or paper towels to dry your glasses, as they may scratch your frame or lenses. Avoid using any cleaners containing ammonia (such as windex) or senitizers,lotions (like some hand soaps), as these products could damage your lenses. Avoid touching your lenses with your hands to prevent contact with dirt and oil particles that could scratch the surface. When not using your glasses, keep them in a case to avoid scratches. Avoid leaving your glasses in a hot vehicle. High heat could damage the frame and lenses. Avoid using rough materials such as facial tissue or paper towels to dry your glasses, as they may scratch your frame or lenses. Avoid using any cleaners containing ammonia (such as windex) or senitizers,lotions (like some hand soaps), as these products could damage your lenses. Avoid touching your lenses with your hands to prevent contact with dirt and oil particles that could scratch the surface. When not using your glasses, keep them in a case to avoid scratches. Avoid leaving your glasses in a hot vehicle. High heat could damage the frame and lenses.