The LensCoat SD9 Memory Wallet (Digital Camo) holds up to 9 SD cards. The material is a lightweight, waterproof poly tricot/nylon. The wallet secures with a quiet elastic closure and is carried by a clip-on tether. All the interior pockets have clear windows so you can easily see which card you need. In addition, a handy business card slot is provided for that quick networking moment. The Digital Camo is an advanced computer generated camouflage pattern. It is modeled after the U.S. Army's standard-issue ACU pattern, which provides a pixelated pattern that maximizes visual break up. The pattern, constructed from small rectangular pixels of color, mimics naturally occurring dappled textures and rough boundaries.