Adata's smart-looking S107 gives you 16GB of storage, a USB3 interface and a rubber casing that Adata claims will stay waterproof at 1m depth for 20 minutes and is shockproof to US Army standards. Unfortunately, the cap is fairly loose, and after a dunking there was some water under the cap; however, the drive still worked fine.
In our file transfer tests, we recorded 20MB/s writing and 87MB/s reading large files and 4MB/s writing and 35MB/s reading small files, which makes this one of the quicker flash drives we've seen. At just over £1.20 per gigabyte, it's also reasonably good value - it's just a shame the cap isn't actually watertight.
