G-Form started out making high-tech protective gear for sports and outdoor enthusiasts, including knee and elbow pads. The same concepts behind protecting the human body, the thinking goes, would also work wonders for protecting delicate electronics, such as laptops and tablets. The company now has a line of sleeves and cases for tech gear, including the $79 Extreme Sleeve for laptops, available in 11-, 13-, and 15-inch sizes (we tested the 13-inch version).
While not promoted as being specifically designed for MacBooks, the company's promotional materials invariably show an Apple logo peeking out from the sleeve, and our 13-inch aluminum MacBook Pro fit inside snugly (a MacBook Air would be a loose fit).
The idea behind the thick, rubberized case, with a crisscrossed pattern on each side, is to not only cushion the laptop, but also absorb the force of any impact. To do so effectively, of course, requires more than just simple foam. G-Form says its cases are made from a material called Poron XRD, which is in turn described by its manufacturer as working like so: "When stressed at a high rate or impacted quickly...the material reaches the point when the urethane momentarily 'freezes'--like water freezing into ice." Essentially, the material these cases are made out of stiffens on impact to absorb the energy, instead of transferring it to your laptop.