TrendyDigital WaterGuard Waterproof Case for Sony Reader Digital Book PRS-500 PRS-700BC PRS-505, Blue Border Designed for Sony Reader Digital Book PRS-500 PRS-700BC PRS-505 You can operate the buttons of Sony Reader right through the case. The UV-stabilized material won't be broken down or discolored by sunlight. WaterGuard protects against water, dust, dirt, sand and frost