Okay, it’s not the most practical sleeve in the world, but the MacVelope from Grantwood Technology (http://www.grantwoodtechnology.com) sure is probably the coolest. Inspired by the debut of the original MacBook Air — when Steve Jobs pulled it from a manilla envelope — the case has been updated for the new MacBook Air computers — one version for the 11-inch model and one for the 13-inch model.

Designed to mimic a standard interoffice mail envelope, the MacVelope — which measures 16 x 0.5 x 11 inches and weighs five ounces — has manila-colored vinyl on the outside and black ballistic nylon on the inside, along with a Velcro closure and red string for added effect. At less than 30 bucks, it makes a great style statement and underscores just how slim the MacBook Air really is.

The MacVelope also has a “rubbery” feel and grip, which helps keep it securely in your hand. And though it may be slim and light, it’s quite durable.

The MacVelope can also be combined with the MacVelope Companion Bag, which I’d recommend. They make a great combo.

You can place the MacVelope into the lightweight Companion Bag, along with such accessories as the external MacBook Air SuperDrive, MagSafe Power Adapter, Ethernet cables, etc. When traveling, you can slide the Companion Bag over the handle of wheeled suitcases, or simply over their shoulder using the included shoulder strap. Three zippered compartments provide plenty of organization.

The MacVelope retails for US$24.99. The MacVelope Companion Bag retails for $29.99. The MacVelope and MacVelope Companion Bag can be purchased together for $49.99.

Rating: MacVelope alone: 7 out of 10; with the Companion Bag: 9 out of 10

— Dennis Sellers