France · 7 outfits
What to wear to Prix de Diane Longines
Outfits built to the dress code as the racecourse states it, with the reason each one passes.
where you are standing
General admission (Village de Diane, stands)
Women
The dress code
No measurable rules. France Galop asks for a chic or even daring outfit and says 'Don't forget to wear a hat... all styles are welcome'; its general rule is correct dress, with jeans, shorts and sportswear to be avoided near the parade ring. The elegance contest (most elegant hatted lady; most elegant duo) is free to enter before 14:00.
Outfit 1
Garden-party classic
- Dresses
- Silk or cotton-voile midi dress, fitted bodice, full skirt, in pale blue or soft floral
- Headwear
- Wide-brimmed natural straw capeline with a ribbon or silk flowers
- Shoes
- Block-heel or wedge sandals in nude leather
- Bags
- Small top-handle or cross-body bag
- Accessories
- Light wrap; sunglasses
Why it passes. A hat is the one thing France Galop asks for; a midi dress is 'chic' and nowhere near the jeans/shorts/sportswear it warns against.
On the day. Lawns and a picnic on the grass: wedges or block heels, never stilettos. Mid-June is usually 13–23°C; carry a wrap.
Outfit 2
Contest entry: hat first
- Headwear
- Sculptural made-to-order hat or large bibi in sinamay, the focal point of the look
- Dresses
- Plain crepe sheath or column dress to the knee or below, in one colour taken from the hat
- Shoes
- Closed-toe block-heel pumps
- Jewellery
- Drop earrings only
- Bags
- Clutch matched to the shoes
Why it passes. The contest category is 'la femme chapeautée la plus élégante': the judges are looking at the hat, and France Galop says 'nothing is too eccentric'.
On the day. You will queue at a podium and walk a catwalk in the Village at about 15:25; secure the hat with an elastic or comb against wind.
Outfit 3
Tailored and daring
- Suiting
- Ivory or pastel trouser suit with wide-leg trousers, or a tailored jumpsuit
- Headwear
- Boater or small structured percher worn at an angle
- Shoes
- Platform espadrille wedges
- Accessories
- Silk scarf at the neck; a wristwatch (the sponsor's own suggestion)
Why it passes. France Galop's guide accepts trousers ('pantalon chino avec chemisier') and the Diane page invites 'a daring' outfit; the hat requirement is met.
On the day. Trousers are the practical choice for sitting on a picnic rug and for a breezy day.
Outfit 4
Picnic duo
- Dresses
- Two co-ordinated cotton poplin shirt dresses in the same print or colour family, calf length
- Headwear
- Matching or complementary straw hats
- Shoes
- Flat leather sandals or low wedges
- Bags
- Basket bag
Why it passes. Built for the second contest category, 'le duo le plus élégant', which is open to friends, couples or family.
On the day. Flat shoes cope with the infield lawns; a basket holds the picnic extras.
What regulars wear. Mother-and-daughter and friend duos are a Diane tradition; Ladurée hat-box hampers are sold for the picnic.
Common mistakes
- Arriving bare-headed: nobody is refused, but the day is built round the hat
- Stiletto heels on the lawns
- Jeans, shorts or sportswear, which France Galop warns against near the parade ring
- A hat so large it cannot be secured in wind
Men
The dress code
No rule for men beyond France Galop's general 'correct dress': chinos and a shirt at least; avoid jeans, T-shirts, caps and shorts near the parade ring. Men can enter the elegance contest only as half of a duo.
Outfit 1
Summer suit and panama
- Suiting
- Unlined two-piece suit in stone, pale blue or light grey cotton-linen
- Accessories
- Pale shirt, knitted or silk tie, pocket square
- Headwear
- Panama hat
- Shoes
- Brown suede loafers or derbies
Why it passes. Well above the 'chinos and shirt' minimum and clear of every item France Galop warns against.
On the day. Linen blends breathe in June sun; leather soles are fine on dry lawns, rubber if it has rained.
Outfit 2
Blazer and chinos
- Suiting
- Navy unstructured blazer with cream or tobacco chinos
- Accessories
- Blue striped shirt, no tie or a casual tie
- Headwear
- Straw boater or trilby
- Shoes
- Leather loafers
Why it passes. Exactly the outfit France Galop's guide calls 'perfect' (chinos and shirt), with a jacket added for hospitality areas.
On the day. Comfortable for a long picnic day.
What regulars wear. The Deauville-and-Chantilly uniform; a boater is the nod to the day's hat theme.
Outfit 3
Duo partner
- Suiting
- Light suit in a colour picked from your partner's dress
- Accessories
- Tie or pocket square in the same fabric or shade as her hat trim
- Headwear
- Panama with a ribbon to match
- Shoes
- Tan oxfords
Why it passes. Made for the 'duo le plus élégant' category.
On the day. As above.
What regulars wear. Co-ordinated couples are what the duo jury looks for.
Common mistakes
- Jeans, T-shirt, cap or shorts
- Trainers
- A heavy dark business suit on a hot garden-party day
Race days this covers
- Prix de Diane Longines · a Sunday in mid-June (2026: Sunday 14 June; France Galop: 'See you in June 2027')
Dress codes change. Check the racecourse's own page before you go: billetterie.france-galop.com, billetterie.france-galop.com