USF Bulls Football Bracelet. Sure, those new Nats caps are spiffy. There's just one problem: Everyone has one. Want a fresh way to stand out from the (cheering) crowd? Try a funky leather bracelet made from an actual Football and stamped with the USF Bulls logo. These bracelets are made of the same leather used for footballs, only in Bulls Green which ensures you're never too far from the sport you love.