The $50 ThermaPAK HeatShift bag is a laptop carrying case that also has a built-in cooling system. The cooling technology works without using any batteries, plugs, or cords, and can be separated from the accompanying case. The design can benefit from extra straps and a more organized interior, but the cooling properties work as advertised and cut the heat from our laptop by an impressive 9 degrees. We recommend this case if your laptop needs to seriously chill out.
The ThermaPAK HeatShift is made of a thick memory foam that you commonly see in high-priced pillows. It won't protect your laptop from a severe fall, but rest assured that it's fully enclosed on all four sides with a hard plastic frame designed to withstand bumps and dings. The exterior of the bag is extremely basic, and the inside cover holds the only pocket on the entire bag. The HeatShift bag should really call itself a case, because it lacks the features of a typical laptop bag, most notably a shoulder strap and room for a power adapter or other accessories.