" Hey, look — Harry’s got a Weasley sweater, too!”

Fred and George were wearing blue sweaters, one with a large yellow F on it, the other a G.

“Harry’s is better than ours, though,” said Fred, holding up Harry’s sweater. “She obviously makes more of an effort if you’re not family. "

― J.K. Rowling , Harry Potter and the Sorcerer's Stone (Harry Potter, #1)