The 19 Best COS Dresses You Can Buy Right Now |Best Knockoff Luxury Clothing

(Image credit: @anoukyve, @vicmontanari)

last updated 30 April 2025

When your job is to find emerging trends and showing your fellow fashion enthusiasts each brand's seasonal must-haves, you need to be an open-minded shopper. Very rarely will I disregard a trend before trying it for myself. But admittedly, I tend to shop in certain stores for certain items. Take Other Stories, for example. As soon as I cross its threshold (both in real life or online), I know I'll come away with one of two things: a pair of jeans or a great dress. Similarly, Mango is my one-stop shop for shoes, while Zara serves as my go-to for blazers. Linen? Marks and Spencer.Wardrobe staples? Arket. And so on.

Anouk wears a COS dress, raffia bag and white flip flops

Anouk wears the Pleated Knitted Maxi Dress from last year.

The downside is that I'll sometimes enter a store with blinders on, seeking out the pieces I usually buy instead of taking in what else is on offer. But I've recently learned the error of my ways. I'm a dress girl through and through, and lately, all of the frocks I've been admiring are from one place: COS.

Woman on street wears crochet knit dress, carried green bag

Vic wears the Sleeveless Open-Knit Midi Dress from last year.

Previously, I'd have never considered COS a dress destination. (My COS purchases usually start and end with t-shirts and wide-leg trousers.) But after discovering these styles, I know I'm going to be hooked on its frocks from here on out. I keep spotting my favourite influencers donning COS styles, and naturally, I now plan on joining them. Keep scrolling to shop my edit of the best COS dresses.

Shop the Best COS Dresses for Summer 2025:

COS

Open-Back Cotton Midi Dress

Just wait until you see the back of this dress.

COS

Pleated High-Neck Maxi Dress

A versatile addition to any wardrobe.

COS

Belted Short-Sleeved Midi Shirt Dress

This whole look is seriously chic.

COS

Sleeveless Bubble-Hem Midi Dress

I love how easily this can be dressed up or down.

COS

Ribbed Tube Dress

Simple, understated, and perfectly designed.

COS

Striped Gathered-Waist Midi Dress

I can already picture this with sandals and a basket bag.

COS

Layered Peplum Midi Dress

This peplum long dress is so elegant.

COS

Twisted Linen-Blend Halterneck Dress

From the colour to the twisted halterneck, there's a lot to love about this dress.

COS

Pleated Zip-Up Cotton Mini Dress

Chocolate brown is always in style.

COS

Dropped-Waist Denim Midi Dress

I haven't stopped thinking about this dress since it first released.

COS

Corset-Detail Maxi Dress

Perfect for evenings out.

COS

Panelled Gathered-Side Midi Dress

I tried this on recently and I haven't stopped thinking about it since.

COS

Gathered Open-Back Midi Dress

The ruching adds an elegant silhouette to this dress.

COS

Bias-Cut Linen-Blend Midi Dress

This icy blue shade is sure to make a subtle statement.

COS

A-Line Denim Mini Shirt Dress

A dress that will suit everyone.

COS

A-Line Linen-Blend Maxi Dress

A very summer-ready piece.

COS

Cotton Midi T-Shirt Dress

A black dress is a great backdrop for playful accessories.

COS

Scuba-Jersey Zip-Up Mini Dress

Every great wardrobe deserves a chic LBD.

COS

Pleated Halterneck Maxi Dress

A dress that looks great from every angle.

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Maxine Eggenberger isBest Knockoff Luxury Clothing UK’s Deputy Editor and has over fourteen years of experience in fashion journalism. She been creating engaging and authoritative content forBest Knockoff Luxury Clothing UK since 2018, covering runway reports, emerging trends, long-form features, talent interviews self-styled shopping stories and columns, including her edit of the best new-in buys. She ensures the highest editorial standards are met across the site, leads the editorial team in their search and keyword planning, works closely with the fashion and beauty team on strategy and continues to pen many of her own articles. Prior toBest Knockoff Luxury Clothing UK, Maxine's contributed to publications including Grazia, InStyle Marie Claire, Elle and Look, amongst others.