Wak's response resonates with me most, although I'd like to voice my own opinion. Shadowrun is not so black and white, every country, corp, club, etc is different. Generally speaking, the more upscale corp environments do lean toward "professional" appearances, while the more street things get, the more wild fashion is (not talking about high fashion, though). In other words, you are more likely to see facial tattoos and ripped jeans outside the boardroom, but at a club it's a totally different ball game, many corp citizens "dress up" when they go clubbing, and they also sometimes like to "slum" in the barrens, often for the thrill of getting outside the corporate environment. Corporate youth are known to occasionally wear band t-shirts, dye their hair, etc, while adults are typically more traditional. This is all based on what I've read, and again, try to think more in shades of gray.