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Classic up-do -

This classic hairstyle is one of the Princess' favorites and most well-known.

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Student days -

Kate's hair has remained largely unchanged since her student days in 2005!

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Natural beauty -

This picture was captured at a concert commemorating Nelson Mandela's 90th birthday in London's Hyde Park in 2008.

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Glowing inside and out -

Kate beams during her engagement photo session in 2010.

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Long locks -

Middleton opts for a straightforward style with a half up-do and flowing hair during her 2014 visit to Australia.

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High ponytail -

In 2014, Kate looks stylish in a blue, well-fitted outfit and wears her hair in a high ponytail in New Zealand.

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Side-swept fringe -

In 2015, Kate sported wavy hair with a side-swept fringe when she visited the Anna Freud Centre in London.

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Wind-swept perfection -

In 2014, during her trip to Australia, the Princess lets her hair down.

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Short chop -

Kate Middleton debuts a shorter hairstyle during her visit to Stockholm.

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Easy curls -

Effortless curls in Berlin.

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Sleek tuck -

The Princess maintains a minimalist style with polka dots.

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Wavy vibes -

The Princess at Docklands Sailing and Watersports Centre.

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Refined -

She styled her hair with a subtly voluminous up-do for the BAFTAs.

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Relaxed structure -

Informal hairdo in February 2017.

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Braided hair band -

In 2016, she showed off a playful braided hairstyle during the official inauguration of Haida Gwaii hospital in Canada.

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Side ponytail -

And a side ponytail for a day out greeting children at the Cridge Centre in Victoria, Canada, in 2016.

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Big hair day -

She went bigger and bolder for the January 2017 charity event, Heads Together.

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Serious waves -

In 2016, the Princess wore prominent waves for an important speech centered on mental health.

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Country chic -

Middleton embodies country style with a practical, relaxed ensemble and flowing hair held back from her face.

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Half up elegance -

At the UK-India Year of Culture 2017 event, she went with a modest half-up-do and a glimmering gown, with few accessories.

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Classic Kate -

At the Guild of Health Writers Conference.

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Grace Kate -

In 2016, Middleton exuded elegance reminiscent of Grace Kelly at a gathering at the British Ambassador's Residence in The Hague, Netherlands.

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Breezy waves -

The royal chooses loose waves with a middle-part for a trip to Steward's Academy in Harlow in 2016.

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Weather prepared -

In September 2016, she opted for a simple half up-do and sunglasses to manage her hair in the ever-changing weather of the Scilly Isles.

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Beachy -

In 2016, she chooses flowing hair and a gentle side-swept fringe for a casual occasion at Newquay's Towan Beach.

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Sporty pony -

In 2016, the royal wore a relaxed ponytail while enjoying a leisurely day at the America's Cup World Series in Portsmouth.

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Loose up-do -

The Princess attended a charity dinner for East Anglia's Children's Hospices in the summer of 2016.

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Curls -

Middleton sported '70s-style waves for SportAid's 40th Anniversary in 2016.

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Tighter curls -

On a trip to India in 2016, the royal has bouncy curls.

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Boho flair -

In 2016, in Bhutan, she sported a loose half up-do with relaxed curls to enhance her traditional attire.

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Polished down -

In 2015, the Princess attended a Christmas party at the Anna Freud Centre in London, showcasing her polished straight hairstyle and sleek side-swept fringe.

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Side fringe -

Middleton dons a playful side fringe at ICAP's brokers London office charity event in late 2015.

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Smooth ponytail -

In 2015, a sleek ponytail was sported for a charity event addressing mental health.

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Windy waves -

A glance at the Fostering Excellence Awards ceremony in London, 2015.

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Half up-do -

For a charity event in 2015, the Princess chose a timeless half up-do with a side-swept fringe.

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1960s inspired ponytail -

The Princess with a 1960s inspired ponytail for the premiere of James Bond movie 'Spectre' in 2015.

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Twisted up-do -

Middleton's hair in a casual up-do with parted bangs.

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Blow-out -

The Princess exudes retro charm with this extravagant hairstyle for a visit to Dundee in 2015.

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Navy fascinator -

In 2015, during the commemoration service at St Paul's Cathedral, the Princess sports a navy headpiece paired with a low bun.

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Wrapped ponytail -

A sleek and elevated ponytail styled for an occasion held at the Contemporary Art Gallery in 2015.

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Sleek and straight -

Kate's hair has a subtle wave, appearing long and glossy.

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Kate's headgear -

The Princess has worn various headpieces and hats during her royal responsibilities. Everything from tiaras to fascinators and winter hats have adorned her chestnut waves. Middleton is a pro at choosing fashion-forward headwear and styling her hair perfectly underneath. 

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Polished side bun -

A textured yet polished low side bun hairstyle for a garden party held in Northern Ireland in 2016.

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Classy bun -

She wore a flowery headpiece to complement her low bun with a white tailored outfit.

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Pastel cocktail -

In 2014, the Princess wore a headpiece and coat of pastel hues while attending World War I commemorations in Mons, Belgium.

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Newsboy cap -

She wore a newsboy hat while participating in a scout volunteering event in Cumbria in 2013.

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Navy cocktail -

An exquisite half up-do and navy cocktail headpiece at the Diamond Jubilee in Nottingham in 2012.

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Pillbox -

A classic pillbox hat worn for Aldershot's St. Patrick's Day Parade in 2012.

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Delicate in lace -

A structured up-do to complement her delicate lace outfit for at Royal Ascot in 2017.

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Elegant in black -

Wearing a classy black headpiece, she visited De Montfort University in Leicester in 2012.

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Howdy Kate -

During the Calgary Stampede in 2011, Kate, who had recently gotten married, wears a cowboy-inspired hat.

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Accent of red -

Middleton dons a white and red ensemble while visiting the Canadian Museum of Civilization in 2011, showing her support for Canada.

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Bold in black -

In 2011, a flamboyant black headpiece and loose curls were worn for Trooping the Colour.

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Fake fur hat -

A furry hat for a day out in Stockholm's Old Town.

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Bobble hat -

A enjoyable bobble hat for a hockey game in Stockholm.

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Wedding tiara -

On her wedding day, she wore a Cartier tiara and veil adorned with a 1,000 diamond. 

See also: The British royal family at the races

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