The new Unibody MacBook case from Waterfield Designs offer a high-grade neoprene and is wrapped in ballistic nylon.  If you have not heard of the the company I would urge you to check them out.  Their prices are very reasonable, very high quality and made in the USA.  The prices start at $39 and can vary depending on the options you choose.

 

Over 65 different sizes. Proper protection starts with a proper fit. Our San Francisco sewing shop churns out a dizzying array of sleeve sizes in 1/2" increments to ensure a custom fit for your specific laptop.

Cushioned with high-grade neoprene and wrapped in a ballistic nylon shell, our SleeveCases function as a stylish stand-alone laptop case or can be inserted into another bag. And no need to take your laptop out of its snug compartment when going through airport security—it’s TSA Checkpoint Friendly. And, if you don’t see your manufacturer, contact us! We’ve got your fit. It’s a slam dunk.

 

[Waterfield Designs – Laptop Sleeves]