Kate Middleton is known for getting involved in her own children’s school runs, but today, the future queen joined youngsters on a school bus for an outing to the National Portrait Gallery. Kate boarded the minibus with four and five-year-old pupils at All Souls CE Primary School in London, in Fitzrovia, and she did it in style.

Wearing a gorgeous chocolate-brown blazer that looks like it could be from a high-street shop like Zara or Reiss (but is relatively indistinguishable) paired with pinstripe, wide-leg charcoal trousers, Kate proves she can do smart casual better than anyone

If you love her blazer and you’ve been eyeing up a similar piece for yourself, Nobody’s Child’s Chocolate Brown Double Breasted Relaxed Blazer in sizes 4-18, £120, will give you almost this exact look (and probably for less). This boyfriend fit blazer has a timeless notch collar, double-breasted front and matching buttons – perfect for pairing with matching trousers or jeans. If stock is running low on Nobody’s Child’s website, you can shop the same blazer on ASOS where more sizing is available.

Make like Kate and give it a workwear finish by pairing it with a pair of wide leg trousers, and you’re good to go. If you want a similar pair of trousers to add to your wardrobe, COS’ Straight Leg Pinstripe Trousers, £85, will complement the brown blazer beautifully.

Kate is pictured wearing this season’s top colour trend ( Image: Getty)

The Princess of Wales paired the brown coat with wide-leg pin-stripe trousers ( Image: Getty)

We love how the Princess of Wales has chosen the blazer in this season’s top trending colour: chocolate brown. It shows she’s keeping track of trends, having fun with fashion and also adapting new-season pieces to suit her Royal wardrobe. This deep brown is also an incredibly flattering shade for both brunettes and blondes looking to add warmth to their looks.

Today’s outing from Kate is the latest in a string of appearances from the Princess of Wales, who is gradually getting back to work after finishing her preventative cancer treatment, much to the delight of her legions of well-wishers and supporters.

Just last week, she made a surprise appearance at a hospice, re-wearing a £90 Zara dress she’s favoured in the past. The timeless and understated dress Kate opted for is a £90 Houndstooth midi from Zara, which is unfortunately sold out. However, if you want to copy the Princess’ affordable high-street look, we found plenty of alternatives for various budgets.

It’s well established that Kate is a huge fan of the check pattern, and as spring approaches, her re-worn ensemble solidifies the check pattern is sure to be on-trend this spring. Marks and Spencer offers this Checked V-neck ruffle Midi-Waisted Dress for the affordable price of £45. However, it’s worth noting that this spot-on lookalike for Kate’s recycled outfit is incredibly popular, with several sizes having already left the shelves

We can’t wait to see what Kate wears next.