DC Rubberized Hard Matte Sleeve Cover Case with Keyboard Cover Skin with Keyboard Skin for Apple MacBook Retina Pro 15 15.4-inch A1398, Green. Protect your laptop against dust and moisture. No effect to your Macbook and easy installation. Material: The case is quicksand hard case coating rubber on the outer surface, made of dura-flex (like Polycarbonate). Design: Use the shatter-proof plastic to splash colors and make great hard shell to protect your laptop and not fully covered. The bottom shell has heat-dissipation hole. But it covers the Apple logo on the top shell. Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.