"Airframe: Easily Adjust Your Fit Anytime, Anywhere Our QuickFit mechanism ensures a secure fit that's resistant to the effects of sweat, thanks to durable materials, resulting in a simpler and sleeker design. Additionally, the comfortable rubber nose pads offer a soft and snug fit. The slim temples maintain elasticity while ensuring a comfortable wear with no pressure. Ideal for everyday use and perfect for active pursuits such as cycling and running. Discover the perfect fit with Airframe." Every JINS purchase includes free shipping, a 30-day return policy, and a 1-year limited warranty. If you visit any JINS store, you can receive a complimentary, no-hassle adjustment with your order.