Bring bold team spirit to your outfit with the New Era Orioles 9FORTY A-Frame UPSD Arch Cap. Crafted from 100% polyester, this baseball cap delivers lightweight comfort for all-day wear. Carry your fandom and show your team loyalty all season long with the New Era Orioles 9FORTY A-Frame UPSD Arch Cap. Part of the 9FORTY A-Frame Arched collection. 100% polyester.