If you have a laptop, you want to keep it safe when it’s with you. That’s what the Incase PerformaKnit Slip Sleeve MacBook Cover is for. It’s like a sweater for your MacBook Air or MacBook Pro. Made of stitch-knit material, this computer-engineered MacBook Pro case has high-performance characteristics. What’s more, this knit MacBook cover can stand up to the wear and tear of daily life. In fact, it protects against scratches on the surface of your laptop, and it..