Your best bet is the Terry website (terrybicycles.com). They carry plus size clothing. The sizes are very generous. Also, Team Borah carries plus size women's jerseys. The nice thing about both manufacturers is that they have loose hems (ie no elastic in the waist band) so the jersey is more comfortable. If you are buying men's jerseys make sure you purchase a "club fit" which is looser, less form fitting than a race fit. I tend to buy men's jerseys just 'cause they are longer than women's. I'm tall and hate for the jersey not to at least cover some of my butt. You also don't really need to buy cycling jerseys. Any sports style top with wicking material will work. Also look at mountain biking jerseys, they run very loose compare to road jerseys.