awesome: The only place they are strict is the Royal enclosure (where the Queen & family does), very strict there, nothing above the knees, no bare midriff etc...
The grandstand & silver ring just insist you are smart, and if you go on the heath, pretty much anything goes within reason

I use to go every year, and it such a great day. Its like a giant party when racing is over for the day.

Not many sober people about lol