I’ve tested hundreds of jumpers—here are 9 styles from COS, Reformation, and Sézane that I’m recommending to my friends…
(Image credit: Who What Wear UK)
My collection of knitwear is one of the most cherished elements of my closet. While many may dread the chilly drop in temperatures, I secretly look forward to reuniting with my coziest pieces. My dedicated knitwear drawers are carefully curated, free from passing fads, featuring only hardworking styles that have supported my winter wardrobe for years. As a shopping editor, I’ve tried on hundreds of jumpers (literally), and after putting these pieces through their paces, I can confidently say that three brands that consistently impress me are Reformation, Sézane, and COS.
Florrie models the Cove Cashmere Oversized Sweater by Reformation (Image credit: @florriealexander). What distinguishes great knitwear from good is the interplay of composition, cut, and colour. These three elements ensure that the piece will endure in your wardrobe, resist shifting trends, and remain a dependable companion during the colder months. That doesn't mean only plain neutrals are welcome; there's ample room for fun patterns and vibrant colours, as long as they align with your personal style. As a self-identified minimalist, you'll find accents of red and playful stripes are staples in my winter capsule.
Florrie showcases the Gaspard Cardigan from Sézane (Image credit: @florriealexander). Each of these three knitwear brands has developed its unique aesthetic, but they share a commitment to high-quality fabrics and fresh interpretations of classic styles. Their attention to detail has resulted in a collection of best-sellers that return every year due to their lasting appeal and ongoing popularity. Today, I will highlight the 9 finest knitwear buys from Reformation, Sézane, and COS.
Shop the Best Reformation, Sézane, and COS Jumpers
1. Reformation Jadey Sweater
Reformation
Jadey Cashmere Oversized V-Neck Sweater
Style Notes: If you're in search of the perfect V-neck jumper, then you need to check out the Jadey. True to its name, Reformation fuses the timeless classic design with a modern twist through its oversized shape. Thick ribbing enhances the neckline, cuffs, and hem of this jumper, which is made from 95% recycled cashmere and 5% recycled wool. In terms of fit, it has just the right amount of slouch to make it a comfy go-to during winter, and the only challenge lies in selecting from the chic array of colours.
2. COS Chunky Cashmere Crew Jumper
COS
Chunky Cashmere Crew-Neck Jumper
Style Notes: A jumper is truly great when it gets brought back every year, and COS's Chunky Cashmere Crew-Neck Jumper has been a staple in their winter collections for many seasons. This knit also features an oversized design, with drop shoulders and a classic crew neckline. Made from 100% GCS cashmere, this heavyweight style is perfect for the coldest winter days. With its timeless design details, it’s easy to understand why this knit remains a constant in the brand's lineup, and it also introduces new shades each year. I've tried it on myself and instantly fell in love. Ask me about the buzz surrounding this jumper, and I’ll assure you it’s well-deserved.
3. Sézane Gaspard Cardigan
Sézane
Gaspard Cardigan - Black - Super Kid Mohair
Style Notes: Although the Gaspard (which I'm wearing above) is classified as a cardigan, the clever design allows it to be worn backwards, creating a sleek knit with a button-up back. This style has been a best-seller for the French brand for years, showcasing a soft scoop neckline, classic fit, and intricately knitted texture. The accent buttons are a lovely detail, and it comes in various colours from striking red to timeless navy. With a blend of super kid mohair and baby alpaca, this knit is remarkably soft, though it tends to run slightly large, so I’d suggest sizing down for a snug fit.
4. Reformation Cove Cashmere Oversized Sweater
Reformation
Cove Cashmere Oversized Crew
Style Notes: Reformation's Cove jumper is the newest addition to my knitwear collection, and in fact, I'm wearing it right now as I write this. Similar to COS's design, it adheres to a classic crew neck shape with a luxuriously slouchy fit, making it the ideal cozy companion for cold weather. I personally opted for a size down in this jumper, which still offers an oversized silhouette. Composed of 95% recycled cashmere and 5% recycled wool, it makes for a wonderfully warm piece for any winter wardrobe.
5. COS Cashmere Funnel-Neck Jumper
COS
Cashmere Funnel-Neck Jumper
Style Notes: While funnel-neck jumpers have garnered a lot
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I’ve tested hundreds of jumpers—here are 9 styles from COS, Reformation, and Sézane that I’m recommending to my friends…
I’ve tried on countless jumpers, but I continually return to these nine knits from Reformation, COS, and Sézane.