The Chicest Women I Know All Shop at This One High Street Brand—9 Elegant Pieces That Prove Why
From denim updates to pretty dresses, these are the 19 best pieces from COS's spring 2026 collection.
It will come as no surprise that most of my chicest outfits include at least one item from COS. Whether it’s a classic T-shirt, perfectly tailored trousers or a throw-on dress, the high street brand consistently impresses me (and my fellow editors) with its expensive-looking designs. As the new season eases in, I’ve been slowly compiling my spring wardrobe, and three times this week I’ve found myself adding COS pieces to my basket. Now, I’m rounding up the best pieces from COS’s spring 2026 collection below.
Florrie wears the Open-Collar Cotton-Poplin Shirt (£75) and Patch-Pocket Straight-Leg Jeans (£95)
Every time spring rolls around, we find ourselves turning to reliable capsule wardrobe buys, and this season COS is bringing its unique balance of classic and contemporary to our most-worn pieces. The throw-on jersey dress has a playful twist detail to accent the shape, the reliable twill jacket has a bold funnel-neck collar to modernise the style, and COS’s beloved tailored trousers have had an infusion of linen to ready them for the warmer days.
What’s more, the colour palette applied to the collection is incredibly elegant. Soft butter yellow returns in the form of loose-fit jeans, floaty dresses and light knit tops. As a softer alternative to black, accents of deep brown can be found throughout the collection, from denim to dresses, perfectly suited to pair with the deep burgundy ballet flats that are currently in my basket. From relaxed to structured, the silhouettes are pushing these designs well beyond their price tag, from the incredibly designer-looking collarless blazer to the softly draped polka dot shirt. As the best COS pieces tend to move fast, let's get straight to the best pieces in the COS spring 2026 collection.
Shop the Best COS Spring Buys

Florrie embarked on her fashion journey whilst studying in Aix-en-Provence, she began to write her dissertation on the history of fashion and landed her first role at Harper’s Bazaar. Following this, she interned for various publications including Elle, Grazia and Marie Claire before joining the fashion team at Conde Nast Traveller. There, she contributed to international photoshoots, styled pages and covers, and produced engaging digital content. Over eight years of fashion industry experience, Florrie has honed her skills from styling e-commerce photoshoots to personal shopping. Florrie first joined Who What Wear UK as a freelancer before becoming the Commerce Writer. Now, as the Shopping Editor, she monitors current trends, new-in styles, wardrobe heroes and how best to style them.