
The Duchess of Cambridge and Princess Eugenie will have to make sure they adhere to the rules, including almost no showing of the knee.
The guide is complete with do's and don'ts, and features outifts that are compliant with the unique dress code.
Rules include straps of at least one inch in width, trouser suits full in length that match, and hats are a must.

Midriffs, fascinators and knees are a no-no.
As for the gentlemen, they are "kindly reminded that it is a requirement to wear either black or grey morning dress which must include: a waistcoat and tie, a black or grey top hat and black shoes. Cravats are out.












