Marware has announced its C.E.O. Sleeve for iPhone 3G. Made from Nappa leather, the sleeve features a microfiber interior, elastic siding for a snug fit, perforated design accents with contrast stitching, open access to the 3G’s headphone jack and sleep/wake button, and an interchangeable Multidapt low-profile belt clip. It will also include clear protective film and a microfiber cleaning cloth. The Marware C.E.O. Sleeve for iPhone 3G is available now for pre-order online for $25 and is expected to ship prior to July 1.