Even though there is no official dress code or outfit for the US Open, there are certain unwritten expectations. Typically, one is expected to wear semi-casual attire, like a short-sleeved shirt ...

LACC observes certain dress code rules as the host venue for the US Open to maintain the club's traditions and ensure a courteous environment. While the US Open does not have a dress code ...

But for the first time, the dress code was included in a glossy pamphlet mailed to members of the All England Club. The guidelines were accompanied by photos of a male and female model.