Workout Waterproof Sandproof Dustproof Bag Accessories suitable for the Sandisk Sansa Clip Zip Made of powerful TPU material which is 10 times stronger than cheaper vinyl versions Ideal support for device with internal 70.6 x 40.8 x 20.3 mm internal dimensions Special 3.5mm pass through connection enables headphone connectivity to the Sansa Clip Zip while maintaining water tight integrity inside Floats with your Sandisk Sansa Clip Zip inside Large, clear front window enables clear visibility and button access to Sandisk Sansa Clip Zip