This Minimalist Cos Sweater Really Is Everywhere This Fall

The brand is the one to beat for must-have knitwear—at least, according to the most recent Lyst Index.

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Cos Cashmere Sweaters
(Image credit: Cos)

Every so often, one item swoops in out of nowhere and becomes inescapable. Last year, it was the humble barn jacket. In 2025, Cos’s knitwear is taking on the mantle of the must-have of season. Don’t take my word for it: The Q3 edition of the Lyst Index just dropped, and the retailer's Chunky Cashmere Sweater was named one of the top 10 hottest products of the moment.

Every quarter, Lyst digs into the data of 160 million shoppers to generate a ranking of the hottest fashion brands and products of that period. Cos sits in third place on the former, coming in behind Saint Laurent and Miu Miu. (It rose up four spots compared to the last Lyst Index, buoyed by its see-now-buy-now Autumn-Winter 2025 runway show at New York Fashion Week and seeing a 147% increase in searches this quarter.) It made the cut on the latter, too, with its best-selling Chunky Cashmere Sweater also coming in third place on the “Hottest Products” lineup, right behind classic black Havanias flip-flops (which senior editor Halie LeSavage attributed to “The Copenhagen Effect” in our Slack channel this morning) and a pair of soft burgundy Saint Laurent loafers.

It's not the first time Cos' knitwear cracks Lyst's top 10 hottest products: The same cashmere sweater came in #5 on the Q4 2024 ranking. Still, there’s been more chatter around the retailer's knit selection as of late, especially in the Marie Claire offices: Editor in chief Nikki Ogunnaike highlighted Cos in her most recent sweater-focused edition of her shopping newsletter, Self Checkout.

As a self-proclaimed cashmere enthusiast, I've had my eye on several sweaters from Cos. It’s my job to have my finger on the fashionable pulse, and this is one collection I'm (already) obsessed with. Keep scrolling to join our sartorial hive mind. Now you can splurge on a new find knowing it's recommended not just by editors, but also by millions of shoppers across the web.

Shop Cos Cashmere, Below

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Julia Marzovilla
Julia Marzovilla
Fashion E-Commerce Editor

Julia Marzovilla is the Fashion E-Commerce Editor at Marie Claire, where she reviews the latest launches from fashion and beauty brands, finds the best on-sale items around the internet, and interviews experts to find the best products in any category to share with her readers. She also creates shopping guides that span every vertical on the site as an expert in everything from the best laptop bags to the best laser hair removal devices.

In her near decade of experience, Julia has both written for several top outlets in the E-Commerce space and worked at major fashion labels. Prior to joining the Marie Claire team, she contributed similar shopping stories to sites such as Bustle, InStyle, The Zoe Report, Who What Wear, and worked as the Trending Fashion and News Writer STYLECASTER. You can find her across the internet at @JuliaMarzovilla. In real life, you can find her creating shopping guides for her friends, cooking or baking in her too-small kitchen, or buying tickets for the next time Harry Styles is in town.

Julia has a Bachelor’s degree in English with a minor in Journalism from Loyola Marymount University in Los Angeles, California. She lives in New York City, her hometown.