Sports Clothing - Where? When?

A more sporty, casual approach to clothing is permeating our lives ... remember when athletic shoes, were for, well, athletics? ... did you ever wear Chick Taylor's outside of the gym ... then came the sports shoe craze ... is high-performance fitness/sports clothing going to follow? Seems to be making some inroads.

While I believe that high perforamnce sportswear would work for very active individuals, I am afraid I believe that I do not belong in this category. A pair of shorts, a T shirt and running shoes would be fine enough for me. Especially since I'm not very fashion conscious as well.