Frivolous fashions! The most memorable fashion looks from Royal Ascot

It may be an esteemed horse race, but we all know the Royal Ascot truly is a five-day royal fashion festival.

By Bettina Tyrrell
The Royal Ascot may be the most prestigious English horse race, but it's also one of the biggest fashion events of Britain's high-society calendar.
Royals and socialites flock to the Berkshire green for five days of equestrian action and more importantly the fanciest fashions.
Ever since it's inception in around 1711, the Royal Ascot has set the scene for exquisite sartorial style, but it must be noted, one can't just turn up in any old thing, there's a strict Royal Ascot dress code.
Traditionally, women were to wear dresses of an appropriate length, meaning just above or below the knee, dress straps must be a least 2.5cm thick (no spaghetti straps!), hats are serious business, no facinators, however a headpiece which has a solid base of 10cm or more in diameter is acceptable.
Meanwhile, for the gents, socks are a must, as are black shoes, a waistcoat must be paired with a tie (no cravats) and a black or grey top hat is to be worn.
In recent years, the rules were bent slightly to allow for women to wear trousers - though they must be full length and of a matching colour.
Now you're clued up on the fashion dos and don'ts, we decided to take a look back at some of the most memorable fashion moments in the history of the Royal Ascot horse races.