Is COS A Fast Fashion Brand?

Screenshot of COS website

Yes, COS is a fast fashion brand.

COS is a British fashion retailer. It is owned by H&M Group, and is the sister brand to & Other StoriesAfoundARKETCheap MondayH&MMonki, and Weekday. It was founded in 2007 by H&M Group as a concept store on Regent Street, and has grown to 264 stores in 48 markets around the world.

H&M Group was founded by white Swedish businessman Erling Persson, and now predominantly owned by his son, Stefan Persson (worth $28 billion).

COS is a fast fashion brand due to the speed it produces its clothes, the huge scale of clothing styles that it offers, and the sheer number of clothes that it sells.

Fashion Revolution Transparency Rating: 66/100
Good On You Sustainability Rating: 3/5
Remake Fashion Accountability Report Rating: 39/150

Additional Reasons Why COS Is A Fast Fashion Brand

Sustainable Alternatives To COS

If you’re looking to stop shopping at COS, I recommend checking out brands with similar styles and better ethical and sustainable credentials such as Kings of Indigo, Komodo, Mother of Pearl*, Organic Basics*, Ninety Percent*, and Toast.

You could also check out my guide to 150+ sustainable fashion brands to find more, or consider searching for second-hand COS garments on my favourite second-hand fashion sites, as well as COS’ own resale site, COS Resell. (Read my review of COS Resell here).

This post is part of a larger guide to UK fast fashion brands, which goes into more detail about the issues with fast fashion, why it will never be sustainable, and how to make your wardrobe more sustainable.

Data for this review is taken from the brand’s website, corporate website, Wikipedia, and sites linked throughout. All information is assumed correct at date of publication. Last updated: October 2022.

Disclaimer: This post features affiliate links (denoted '*').


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