JBiel102808_01_X17.jpgJessica Biel JBiel102808_11_X17.jpg First Katie Holmes, then Melissa George, now Jessica Biel?

JT's main squeeze rocked the menswear look in Rome, at a photo call for her new film, Easy Virtue.

Considering that she doesn't always have the most, uh, feminine qualities, we think this is one look she can leave to the guys.