The Princess of Wales has a rotation of four core hairstyles that balance practicality with royal elegance, according to hairstylist Tina Farey. These looks are designed to be stress-free for her busy schedule and flatter her face shape.

Farey, editorial director of RUSH Hair, told the Daily Mail that these four styles—the 'practical ponytail,' 'mermaid waves,' 'half-up, half-down,' and the 'classic updo'—have become staples in Middleton's public appearances.

"Each look has established itself as a classic which she can wear again and again depending on the occasion," Farey said. "Most importantly, they are practical and can be adapted to her workday – whether it takes her to Centre Court at Wimbledon or the summit of Ben Nevis."

The 'half-up, half-down' style is described as 'camera-ready,' balancing sophistication with Middleton's natural beauty. Farey noted that it accentuates her cheekbones and adds an "understated elegance." This method involves sectioning the hair, taming flyaways with hairspray, and securing the top layer into a ponytail at the back of the head. For added height, backcombing or using a comb to lift the hair can be employed. Sections can also be curled or waved for a more formal look.

The 'practical ponytail' is deemed ideal for outdoor events and networking. Farey stated that this style keeps the hair away from the face, making it suitable for occasions like Middleton's recent appearance at Wimbledon. Light-hold hairspray is recommended to manage flyaways and ensure the style remains in place throughout the day.

Tina said this look is 'ideal for outdoor events where she is networking'

'Mermaid waves' are noted for amplifying texture, volume, and movement, complementing Middleton's current lighter brunette hair color. A professional tip for achieving this look involves focusing on root volume during blow-drying for added glamour.

Kate's tumbling mermaid waves often leave royal fans swooning

For more formal occasions, the 'classic updo,' often a low bun, is favored. This style is said to suit Middleton's polished aesthetic and enhance the radiance of her hair. While the Princess has been seen creating updos seemingly without assistance, Farey suggests bobby pins are likely used for her signature 'twist and tuck' look.

While Kate has previously impressed fans with her ability to gracefully tie her locks back without a hairband, she likely relies on bobby pins for her more famous 'twist and tuck' look

Farey concluded that the combination of these hairstyles is timeless and flattering for Middleton's oval face shape, with its sharp jawline and high cheekbones.

The article also notes that when Middleton debuted lighter, sun-kissed hair at the start of the year, it created a 'Kate Effect,' leading many women to seek similar 'Posh Mum Bronde' color at salons. This hair color was popular for being polished yet low-maintenance, appealing to busy mothers.