I have no idea what even story line you’re talking about. But. This game has gotten big enough to have an extremely in-depth Wikipedia entry, that has all the answers to my questions. It might be able to help you too.
I'm guessing you mean skintight pants? Skintight pants are things like compression pants or yoga pants, and can be found in the sportswear store in town. Skintight pants will have the word "skintight" in their item description.
