The U7 is crafted from titanium and thanks to the precision CNC machining it's elegant something like a cocoon so we call it Spring Cocoon. At the top, there's a lanyard/paracord hole for attaching the U7 to your bag, you can take a spare battery (suitable with AA, CR123, and 16340 batteries) in a dry environment to extend the runtime of your gears, or you can store cash or pills (disinfect the internal before putting the pills into it) for emergencies.
Overall length: 97mm
Outer diameter: 21mm
Waterproof: Equivalent IPX8