Just look like a geek its the same
Can you define preppy fashion?
A student at or a graduate of a preparatory school. 2. A person whose clothing or behavior is associated with traditional preparatory schools. Adj. 3. Of, pertaining to, or characteristic of a preppy: preppy clothes.
Preppy - definition of preppy by The Free Dictionary
Urban Dictionary has the best definition here:
Embrace the variety you have.
In the future, everyone dresses pretty much the same.
Some one that dresses nice but also causal.