Here are some Isshinryu site links I have found over the years. Remember if its equipment you are looking for check with Sensei Perry first, his prices are hard to beat!.

http://www.verticalfist.net/

http://www.isshinryu.com/

http://www.eisshinryu.com/

http://www.iika.com/

http://www.isshinryu.nxs.net/