Silicon Power Jewel J20 64GB USB 3.1 Flash Drive Review
 

While the Jewel J20 does not break any speed records in terms of data transfer, thanks to Micro COB technology we can see a really tiny finalized product which aims on being in-line with the current fashion trends. The design is vibration-proof, waterproof but also dust-proof and Silicon Power is also throwing in a lanyard, easy to install.

http://www.madshrimps.be/articles/article/1000895/