On the Ladies ’ Day of the festival ( the Oaks day ) it is slightly less formal – instead of morning dress you must wear a jacket , collar and tie .

Ladies : in the Queen ’ s Stand , build your outfit around a beautifully-cut day dress or a tailored trouser suit ; don ’ t be afraid to don something a little dramatic and aim for luxurious fabrics and finishes .

In the Queen ’ s Stand a hat or substantial fascinator is compulsory , and most ladies enjoy the opportunity to wear a properly eye-catching creation . Star milliner , and frequent Derby ambassador , Philip Treacy said : “ Fashion at The Investec Derby is a level playing field . Revel in the freedom of being able to play with different colours , styles and trends . Anyone can wear millinery and The Derby provides the ultimate platform to do just that .”

The Grandstand enclosure , which includes the Duchess ’ s Stand , officially requires guests to dress up for the event , and is generally renowned as the area to showcase the summer season ’ s latest trends – so don ’ t limit yourself to the more classic suits and dress coats ; enjoy floaty dresses , all-in-one trouser suits and vintage combinations .

Team with high wedged and highly decorated heels and turn heads with fabulous fascinators or headpieces – headwear is compulsory if you are attending one of the Grandstand Hospitality areas . Key themes : fun and flair .

In the Grandstand hospitality areas gentlemen must wear a jacket and collar , and ties are encouraged . Sharp suits are popular , accessorised with smart sunglasses and patterned shirts , as the guys are happy to be as flamboyant as the girls at this event – see page 12 for ideas . In other enclosures and out on the Downs there is no formal dress code but this is no excuse not to go to town !