The sleeve is made of Woolenex, a wool-polyester blend that repels moisture, mould and chemicals. The Incase Sleeve is woven from both 300D and 600D polyester and retains a slim, lightweight shape with the high tensile strength of ballistic nylon. The shock-absorbing TENSAERLITE bumper protects each side and provides maximum impact protection with minimal weight. Compatible with Apple MacBook Pro 16" (2019)