The lightweight, shock-absorbing TENSAERLITE bumper is molded and sewn to each side and provides maximum impact protection with minimal weight. Additionally, the ICON Sleeve is crafted with a refined, long-lasting Woolenex exterior and soft, faux-fur-lined interior to carefully protect MacBook against bumps and scratches during transport. The secure magnetic closure prevents unwanted slips and keeps out dust and debris while still allowing easy access to MacBook. Woven from both 300D and 600D polyester, Woolenex retains a slim form with the high-tensile strength of ballistic nylon meaning you can use it consistently over extended lengths of time. The unique weave results in a lightweight, durable textile with beautiful color depth.