The handle is a combination of durable nylon resin composites and soft, rubberized surface coating.
The Imation Clip Flash Drive features the smallest of USB flash drives, safely encased in a durable, rubberized shell.
What you get for that price is a waterproof, rubberized set-up with built-in an infrared illuminator.
However, if you're just worried about being able to see while you play a game of Frisbee or ride your bike around town, a pair of these with rubberized tips that will grip your skin even if you sweat may be all that you need.
Some cases are rubberized, adding a bright pop of color or pattern and protection from breaks and scratches if it's dropped.