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By xiebin
inFeatures
I think, by this point, we’re all aware of how great it is to have COS as a part of our great British high street. Whether you’re a super-fan whose wardrobe only consists of the brand’s minimalist designs or simply someone who pops in when you’re in need of a perfect white T-shirt. Since it landed on our shores back in 2007, COS has managed to become the arbiter of understated style, expensive-looking basics and a haven for capsule wardrobe staples—all at the more affordable end of the spectrum. And that’s the key to its success—COS has been democratising the “quiet luxury” aesthetic for many years before that phrase was on everyone’s lips. It’s where everyone from editors and A-list celebrities, to my mum turns if they want to find quality classics that are design-led and anything but boring.
Here at Who What Wear, we have access to a whole heap of data that means we can really see what people are shopping (not just on our Instagram feeds). This way we get a genuine idea of the hero buys that are truly worth the money, and unsurprisingly COS is one of the brands that consistently crops up in these best seller lists. And so, since we all want to know the buys that have been backed by the hard evidence of other people’s trust, I thought it would be insightful to share with you the brand’s most popular buys of 2025 so far (yes, just a few days in!). From hero basics that you’ve probably been searching for, like perfect vests, T-shirts and shirts, to cult items like that studio bowling bag, and those wide-leg trousers—they’re all in this list. As you’d expect, though, everything shares the signature COS characteristics, making them versatile, timeless investments you’re unlikely to regret.
Keep scrolling to see and shop the top 15 COS best sellers of 2025 so far…
Top Picks: The 15 Most Popular COS Items of 2025 You Need to Know About
1. Chunky Pure Cashmere Crew-Neck Jumper
COS
Chunky Pure Cashmere Crew-Neck Jumper
£225
COS is well known, and loved, for it’s cashmere and so chances are you’ve already seen this knit all over your Instagram feed this season. We love the classic grey, but it also comes in beige, black and the prettiest pink.
2. Belted Double-Faced Wool Coat
COS
Belted Double-Faced Wool Coat
£250
This has been seen on so many of the most stylish people, and is the perfect light layer to see us through winter and into early spring.
3. The Clean Cut T-Shirt
COS
Clean Cut Regular T-Shirt
£30
This comes in so many colours and prints but thank you, COS, for the perfect white tee..
4. Funnel-Neck Merino Wool Dress
COS
The Funnel-Neck Merino Wool Dress
£155
Winter for me is all about easy throw-on dresses that you can wear with boots or flats, and this high-neck style is of the chicest around.
5. Arch Jeans
COS
Arch Tapered Jeans
£85
Honestly, we all love these jeans. Don’t believe me? Read our thoughts here…
6. Ribbed Tank Top
COS
Ribbed Tank Top
£17
A tank is an essential layering item.
7. Studio Bowling Bag
COS
Studio Bowling Bag – Suede
£225
The WWW team loved the original leather bowling bag, but we’re even more in love with the suede iteration.
8. Wide-Leg Tailored Twill Trousers
COS
Relaxed Twill Wide-Leg Trousers
£115
Is there anything more timeless than a tailored trouser? COS’ bestselling style is back in stock and now in a new mole colourway.
9. Crew Neck Merino Wool Top
COS
Crew-Neck Merino Wool Top
£55
When you’re looking for chic looks during the transitional period, layering tops are always the answer.
10. Square-Toe Leather Knee-High Boots
COS
Square-Toe Leather Knee-High Boots
£270
If you told me these were three times the price, I’d believe you.
11. Balloon-Hem Maxi Skirt
COS
Balloon-Hem Maxi Skirt
£110
What a skirt!
12. Reversible Leather Belt
COS
Reversible Leather Belt
£55
This could easily pass for designer.
13. Oversized Tailored Shirt
COS
Oversized Tailored Shirt
£65
No doubt, you’ll want to wear this comfortable yet smart shirt on repeat.
14. Chunky Pure Cashmere Turtleneck Jumper
COS
Chunky Pure Cashmere Turtleneck Jumper
£250
If, like me, you thought green couldn’t look expensive, then let this jumper change your mind. Elegant and sophisticated, this is a real beauty.
15. Leopard-Print Pony Hair Ballet Flats
COS
Leopard-Print Pony Hair Ballet Flats
£125
I am in love!
Shop More COS Buys We Love:
COS
Merino Wool Turtleneck Top
£55
A winter layering hero.
COS
Pointed Leather Kitten-Heel Pumps
£135
Very chic.
COS
Wrap-Collar Pure Cashmere Jumper
£250
I predict a sell out!
COS
Facade Straight-Leg Jeans
£95
These just look so chic.
COS
Scarf-Detail Silk Blouse
£135
So elegant.
COS
Shearling-Lined Nappa Hooded Jacket
£1000
The temperatures are about to drop, so why not consider investing in a warming shearling jacket?
COS
Serif Tote – Suede
£200
A fantastic price for a tote you’ll love and wear forever.
COS
Ribbed Wool Balaclava
£75
COS knows all about creating a minimalist forever accessory.
COS
The Oversized Double-Faced Coat
£400
This could easily be three times the price.
COS
Relaxed Twill Wide-Leg Trousers
£115
A fun update on the classic wide-leg trousers.
COS
Merino Wool Crew-Neck Jumper
£85
The cloud-soft fabric is what sold it for us.
COS
The Elongated Sleeveless Blazer
£270
The roomy fit adds the elegant edge.
COS
Elasticated Midi Skirt
£85
Nothing says winter quite like a black midi skirt.
COS
Fringed Brushed-Mohair Scarf
£85
Your next weekend outdoors, sorted.
COS
Leather Riding Boots
£270
I just love these boots!
COS
Wrap-Collar Wool Dress
£125
Cosy and chic.
COS
Cavatelli Clutch – Leather
£135
Stunning.
COS
Long-Sleeved A-Line Shirt Dress
£85
Get your wardrobe ready for the spring weather.