The original Spider-Woman, Jessica Drew -- who, oddly enough, was created purely so Marvel would have the rights to the name in 1977 -- has kept the same red and yellow costume for decades (a new Spider-Woman wore a black costume, matching Spider-Man's briefly in the 1980s).
Now Marvel is ready to update the character with a more modern looking outfit that includes a red and black jacket with yellow accents and tight black pants.
It follows on the heels of DC Comics' fashionable new take on Batgirl earlier this year (like CNN, DC Comics is a Time Warner company). That costume also included a jacket. [Source]