Some people, like Harry Styles and Zoë Kravitz, share clothes with their partners. Others, like Mary-Kate and Ashley Olsen, co-own pieces with their sisters. However, when it comes to my mum and me, we’ve taken a Rory and Lorelai Gilmore route and made it quite the habit to shop each other’s wardrobes. They say necessity is the mother of invention, and I would argue that this adage certainly applies to us, especially since this unorthodox way of dressing emerged from our constant fawning over the same things. Rather than buying two identical items and running the risk of wearing them at the same time, we decided that taking turns would alleviate any sartorial-related arguments.

You see, we only have an age gap of about 16 years—told you we’re the real-life Gilmore Girls!—so sharing references, shopping together and picking out outfits for one another has been a common thread throughout my whole life. However, now that I’m a fashion writer, my recommendations have a little more weight behind them. These days, it’s rare for my mum to run out and buy something without consulting me first. She won’t take my advice every time, but when she does, it’s because she knows she’s doing us both a favour by investing in something we’ll both cherish.

(Image credit: @avahgilchrist)

All this to say, the changing of the seasons was the perfect invitation for us to consider building out our cold-weather outfits. COS is somewhere we always turn to when stocking up on thoughtful autumn basics. The designs are always premium, worth the money and timeless enough that work for both our tastes. Truly the definition of expensive-looking high-street finds. After all, she’s a 44-year-old elder millennial whilst I’m a 27-year-old older Gen Z. More so, as we shift into brisker temperatures and grey skies, the high-street favourite is striking that balance between function and form, offering mood-boosting pieces that still make you look put together in spite of the elements.

Consider this a shopping list to see you through the months ahead. From elevated knitwear to sumptuous coats and a few wardrobe enhancers that can uplift your jeans and trousers even in the darkest depths of winter, scroll on for an over-50s COS autumn edit that comes editor-approved.

Shop My Mum and My's Over-50s Cos Autumn 2026 Edit:

COS Belted Double-Faced Wool-Blend Long Coat

Fluid lines and soft structures underpin this decadant coat.

COS Scarf Jacket

There's so much to dissect here, from the red envelope clutch to the pleated satin trousers. However, it's the scarf jacket that is the real crème de la crème for me.

COS Brushed-Cashmere Crew-Neck Jumper

COS's jumpers are second to none, and this brushed cashmere feels perfect for elevating even the most simple outfit formulas.

COS Brushed-Cashmere Triangle Scarf

Of course, I had to show you the matching scarf. Tie around your neck or style await your waist.

COS Inlet Curved-Leg Jeans

As the temperature drops and days become shorter, hemlines become looser and denim gets more casual.

COS Brushed-Cotton Long-Sleeved T-Shirt

Striped tops are such a perfect alternative to classic white tees.

COS Merino Wool Buttoned Funnel-Neck Top

Half henley top, half mock neck, full class.

COS Pleated Tulip Trousers

My mum and I aren't believers in the balloon trouser trend, but this style tows the line whilst still looking structured.

COS Panelled Pointed Leather Wedge Ankle Boots

Sock boots have quickly become my current fixation, and this half patent, high vamp style is my favourite pair on the market.

Shop More Chic COS Pieces for Autumn 2026:

COS Wing-Collar Cotton Tuxedo Shirt

If Chanel's Charvet shirt is out of the question, this COS tuxedo style will certainly scratch that itch.

COS Tailored Wool-Blend Double-Breasted Coat

A black coat will last you a lifetime, and this style is a superb option.

COS Frieze Bowling Bag

If The Big Lebowski met The Devil Wears Prada.

COS Jersey Cardigan Top

Red is an excellent repellant for winter blues.

COS Corduroy Straight-Leg Jeans

There's truly nothing I adore more than wearing a pair of corduroys on a cool autumn day, and this outfit is one I plan on replicating immediately.

COS Cropped Flared Trousers

Thank Zoë Kravitz for brining kick flares back.

COS Collarless Shearling Jacket

Simply decadent.