This seems to be the new Stoke City away shirt made by Le Coq Sportif for the 2008-09 season. Stoke City have used yellow away shirts before from the 1977 season until the 1992 season but never used it since. It's a leaked picture so we have to wait until the kit launch to see the full official kit.
The Potters (after the pottery industry in Stoke-on-Trent) 08/09 home kit consists of a red & white vertical-striped shirt with white or red shorts and white socks.
Thanks to joebarbieriSCFC