The Duchess of Cambridge just wore the summer's easiest style

Watch: The Duchess of Cambridge becomes patron of charity supporting mental health of mothers

Yahoo Life’s editors are committed to independently selecting wonderful products at great prices for you. We may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

The Duchess of Cambridge has added another patronage to her ever-growing roster, releasing a new video to mark her new role with a “fantastic organisation” supporting the mental health of women.

Kate, 40, said no mother is “immune to experiencing anxiety and depression” in the video marking her new patronage with the Maternal Mental Health Alliance (MMHA).

The senior royal said it was crucial for those “struggling” to be given the “right support at the right time” in the video message for Maternal Mental Health Awareness Week, which ends on Sunday.

To view this content, you'll need to update your privacy settings.
Please click here to do so.

Read more: Duchess of Cambridge tackles depression and anxiety in mums with new role

“We all know that pregnancy, childbirth and the first months and years of a child’s life can be hugely demanding,” said the post beneath the video on the Duke and Duchess of Cambridge’s Instagram account.

“Over the last decade,” it continued, “charities and organisations have come together to transform attitudes, raise awareness and ensure that services are available to parents and babies at this important time in their lives.”

Much of this work has been led by the @mmhalliance, a fantastic organisation of which I am extremely proud to become patron today.”

The Duchess of Cambridge's MaxMara dress is the epitome of this summer's go-to style. (MaxMara)
The Duchess of Cambridge's MaxMara dress is the epitome of this summer's go-to style. (MaxMara)

Read more: Duchess of Cambridge fans go wild for royal's latest day look: 'A true style icon'

The duchess opted for a floral midi dress by Italian fashion brand Max Mara. It featured long sleeves with lace detailing down the arms and across the chest, with a delicate dark blue floral design on a cream background.

The £630 frock featured a button-down opening at the front with a shirt-style collar, which is fast becoming one of the summer’s most sought-after styles.

The shirt-dress style has long been a stalwart of the Duchess of Cambridge's wardrobe. (Reuters)
The shirt-dress style has long been a stalwart of the Duchess of Cambridge's wardrobe. (Reuters)

Read more: Duchess of Cambridge rewears Christening dress for Anzac Day service

A distant cousin of the looser shirt dresses of beach cover-ups and city-chic styles, this midi shirt dress trend is a more figure-hugging, elegant option.

The result? A laid back yet put-together look that can be worn from desk to dinner, weekends or weddings. Pair with white trainers for on-the-go ease, or sandals when the temperature rises, and swap out for espadrilles or heeled sandals for special occasions.

Already convinced? Keep scrolling to get the look for less.

The best midi shirt dresses for summer and beyond

Floral Button Through Midi Shirt Dress | £45 at M&S

(Marks & Spencer)
(Marks & Spencer)

Clay Organic Cotton Floral Shirt Dress | £79.95 at Thought

Thought Clothing midi shirt dress
(Thought Clothing)

Hattie Printed Shirt Dress | £75 at Hush

Hush midi shirt dress

Spot Print Midi Shirt Dress | £129 at Whistles

Whistles midi shirt dress. (Whistles)

Printed retro shirt dress | £49.99 at Mango

Mango midi shirt dress

Phase Eight Libby Spot Dress | £65 at John Lewis

Phase Eight
(Phase Eight)

Tatianna Midi Shirt Dress | £59 at Nobody's Child

Nobody's Child
(Nobody's Child)

Finery Airlia Midi Shirt Dress | £89 at John Lewis

Finery at John Lewis
(John Lewis)