Corsair Flash Survivor Stealth 128GB USB 3.0 Flash Drive - High-Speed Waterproof & Shockproof Thumb Drive (CMFSS3-128GB) - Perfect for Outdoor Adventures, Data Backup & File Transfer

This is a fast, robust, Zombie Apocalypse surviving USB key. It looks cool, is made from extruded and machined aluminum - with aluminum end caps (wish these were rubberized) and O-ring seals. The labeling on the outside, well, those are cheap decals that fell off in a few days of use. The name/logo should really be laser engraved. Without the decals, this could pass for a waterproof case for a couple of cigarettes or a cigar butt.One of the end caps is designed to hold a key ring, wrist strap, etc. Only the end cap with the key-ring/lanyard hole can be removed. The ring that tightens the end cap is covered in knurled rubber, as is the matching faux ring at the opposite end. This helps prevent (but not stops) the cylinder from rolling around. Because it's rubber, it's also easy to grip.Gotta say, this is one tough USB key case! The key itself is pretty robust as well. It is plastic, but fits snugly inside the case, so it won't wobble around. I don't know why you'll we need a key this destruction and depth-proof, but I purchased it for the cool factor. If you're working a lot outdoors, have to ship USB keys, or want to store some valuable data on a drop and waterproof key, here it is. Live on a boat? Get a few!