When purchasing NASA pins, look for the embossing on the back:

Expedition 22
NASA
ABEmblem.com

to make sure you are getting the NASA authorized version of the pin.

Expedition 22 begins with the Soyuz TMA-15 undocking in November 2009. Three new crew members will arrive shortly thereafter on Soyuz TMA-17.

At right: From the left (front row) are Commander Jeffrey Williams and Flight Engineer Oleg Kotov, flight engineer. From the left (back row) are T.J. Creamer, Maxim Suraev and Soichi Noguchi, all flight engineers. Image credit: NASA