I Just Assembled 5 Expensive-Looking Autumn Outfits Entirely From COS
Despite forging a career for myself in fashion, I secretly find autumn a really difficult time to dress for. A dress girl at heart, I love how summer lends itself to floaty, oversized pieces that I just have to slip on with sandals and I’m set. I find so much joy in dressing for warmer months, and shopping is something I particularly relish between May and September. But when autumn hits, the nerves creep in, and I start to lose my confidence when it comes to new-season clothes. To combat this, there is one thing I always rely on as the leaves start to brown and the days get darker, and that is a solid bank of timeless, stylish and easy outfits that I feel good in. And for this, I head to the high street.
One of my favourite destinations for this type of shopping is COS. Full of elevated basics that always impress, the brand has everything from designer-style outerwear to mix-and-match tailoring and leather handbags to expensive-looking earrings. To prove it’s home to myriad classic autumnal hits, I’ve put together five chic ensembles that will serve you—and me—well as we move through the seasons. And if you’re just looking for inspiration as to what to update your wardrobe with this year, consider this your guide.
Scroll down to discover my five go-to autumn COS outfits as well as all the pieces you need to help re-create them.
1. FOR RUNNING WEEKEND ERRANDS
Style Notes: I love this easy autumnal look. Perfect for running errands at the weekend or a weekday spent working from home, it pairs an on-trend striped knit with simple straight-leg jeans, chic flats and a timeless trench. A winning combo.
Shop the look:
2. FOR A SMART DINNER
Style Notes: Leather midi skirts are so stylish. Opt for luxe olive green, and sandwich it between sleek black separates. This cape-sleeve top will help balance out the a-line shape of the skirt, while knee-high boots add height. Accessorize with gold jewellery to complete the look.
Shop the look:
3. FOR THE OFFICE TO AFTER-WORK DRINKS
Style Notes: The whole Who What Wear team is in agreement: Three-piece suits are just so cool. Add statement heels or swap in trainers for a more casual take.
Shop the look:
4. FOR A COUNTRY ESCAPE
Style Notes: COS is one of my favourite high-street destinations for quality outerwear. Pair this designer-style padded coat with leggings, chunky boots and a relaxed knit before adding a crossbody bag and a bright scarf for a pop of colour.
Shop the look:
5. FOR DATE NIGHT
Style Notes: This is such a great date-night look. The gathered detail and low back on this chiffon maxi dress keep it looking modern, while heeled mules and dainty jewellery help add an evening-appropriate touch.
Up Next: H&M's Expensive-Looking Autumn Edit Is So Good—I Need You to See It

Poppy joined the Who What Wear UK team as managing editor in 2022. After graduating from university with a degree in English literature, she worked for several publications, including Women's Health, The Times and Marie Claire.
As WWW UK’s managing editor, Poppy looks after the content calendar and all output across the brand, in addition to working with contributors and supporting with social media planning, branded content, marketing and brand strategy. A keen eye for detail means Poppy oversees the production of tentpole moments such as special issues, events, gift guides and more. You won’t find many articles by Poppy on site, but when you do there’s no doubt they will either be focused on dresses, handbags or classic high-street buys she shares with her mum. Or better yet, all three!
-
10 Ways to Make This "Ugly" Winter Shoe Style Look Cool in 2025Do you own it?
-
Here's How All the Cool Girls Will Be Wearing Their Leggings This WinterThese outfits feel more fashion and less fitness.
-
Fashion Girls Ditched All Other Ankle-Boot Trends for This One Specific Rich-Looking StyleAnd here's how to wear it.
-
Yes, You Can Still Wear Your Favorite Ballet Flats This Winter—Here's HowOutfit ideas ahead.
-
I'm Bored With My Closet—These 27 Chic Zara, J.Crew, and COS Finds Have the Power to Turn Things AroundEffortless and rich-looking is the vibe.
-
If You Want to Look Chic and Rich This Winter, Make Sure You Own This Non-Denim Pant TrendSee what we’re talking about inside.
-
Every Fashion Editor on Our Team Loves COS—19 Fall Items We Predict Will Sell Out by ThanksgivingElevated, minimalist, and timeless.
-
The 2025 Way to Wear Sneakers This WinterOutfit inspiration inside.
