Apparently PI changed the chamois in most of their shorts this year - women's and men's too. Funny, but the guys I work with (who also ride) hate the new PI chamois in the men's shorts too. I used to wear PI ultrasensors, but the chamois change made the shorts very uncomfortable for me, and I switched to Sugoi shorts. I'm very happy with the chamois in my new RS Flex Shorts.

Good luck finding last year's PIs. If you can't find them, hopefully you can find a reasonable replacement.

--- Denise