"I was so excited," Upton said.
"She looks absolutely stunning. So do the other cover girls, but I was excited that it showed all the different body types. I think it's important for all girls to see that... It's great that Sports Illustrated showed that every woman can look amazing in a bikini."
Upton thinks Graham's appearance is one more step in pushing the fashion world to stop using the "plus-size" label, reported E!Online.
"No one should be labeled by their body size at all," she said.