The Jenners didn't go to a traditional high school, which is a shame, because I'm pretty sure Kendall would've killed Spirit Week. Kendall Jenner at the Olympics was basically a Team USA mascot, because apparently she bleeds red, white, and blue.
Jenner showed up to watch the women's gymnastics all-around final on August 1 wearing an official Team USA jacket from Ralph Lauren—the same jackets which will be worn by the flag bearers at the closing ceremony—as well as a matching hat.
The blue zip-up is emblazoned with “USA” patches and insignia, with an armband reading “24” and a red and white stripe in the middle with “USA” written in big, bold letters. The jacket is available on the Ralph Lauren website, so it doesn't look like Jenner necessarily had to pull any strings to get her hands on one. The model's patriotic ensemble also included classic blue jeans (very Americana), a plain white t-shirt, sunglasses, and black loafers.