Yes, simple frames will never go out of style. Kaiden is a dark brown frame. This classic square frame is matched with ultra-light frame material. This type of TR glasses has a low friction coefficient, strong toughness, impact resistance and abrasion resistance. Not only can it be worn for a longer period of time, it is not easy to cause eye and face injuries due to glasses breakage during exercise. Can appear on any occasion. It minimizes slippage and maximizes comfort.