The name "Logitech Washable Keyboard K310" leaves very little to the imagination-- here is a spill-resistant, washable keyboard Logitech says users can submerge in up to 28cm of water.
The USB cable has to stay dry (and preferably not connected to a PC) of course.
Drainage holes provide easy drying while the the laser printed, UV coated key characters should not fade away in the wash. The company also claims the keyboard can take "a pounding" with full-size keys lasting up to 5 million keystrokes.
Completing the keyboard package are F-keys, number pad and a collection of media shortcut keys.