FASHION FRAME DESIGN -HDCRAFTER cycling sunglasses use of advanced high-quality materials , aluminum-magnesium alloy , Its hardness is several times of traditional plastic, but they are scratch resistant, durable and unbreakable and adjustable.
LIGHTWEIGHT AND FLEXIBLE – The sports sunglasses are light-weighted for ergonomic wear and stresses free even when you put it on for a day long. Also, the arms are elastic with spring hinges that can adjust the size to suit the persons with large head or big face.