Sold in black, tan, red, or white, Sena Cases' new UltraSlim Pouch for Apple iPhone ($29) is a thin, unreinforced leather sleeve with a hole at the top to insert the iPhone, and vent holes at the bottom to let its speaker and microphone be used while inside. Fine textured Nappa leather gives the sleeve an interesting look; it's not designed to be attached to a belt clip or anything else of the sort.