Seth Cohen is the O.C.'s lovable nerd, and his style is one of the coolest on television. Even though he is a geek, he still gets the girl. If you want to imitate his hot fashion, you've come to the right place!
Purchase collared button-up shirts, preferably striped or checkered. Thrift stores always have great stuff when it comes to this.
Wear Mr. Rogers-style sweaters over your collared shirts.
Sweater vests also work well. Make sure the sweaters match the collared shirts.
Wear tight dark jeans.
Converse or All Star shoes go well with this, and Seth Cohen tends to wear them.
This picture shows some other choices.
Have fun and look good! !!
Feel free to change this up to fit your style; these are just suggestions.