The LaCie XtremKey is the toughest USB flash drive you can imagine. Its 2 mm thick full-metal casing is made of zamac, an alloy of zinc, aluminum, magnesium, and copper. This alloy is so strong that it’s resistant to the crushing forces of being driven over by a 10-ton truck. The casing is sealed with wear-resistant screw threads and a rubber O-ring, so it’s watertight up to 100 meters. It’s been tested to withstand temperatures of 200°C (3 minutes, with no flames) and up to 12 hours at -50° C. It’s also drop-resistant (5 drops from 15 meters). It works with Windows and Mac computers and comes with a 2 year limited warranty. The XtremKey is available in 8GB ($49.99) and 16GB ($79.99) sizes now; 32GB (139.99) and 64GB ($249.99) will be available soon.