I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones.

I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones.

      If you ask any of our editors or any fashion enthusiast about the top high street brand for trousers, you'll likely hear COS mentioned. The brand is recognized for its mastery in essential styles, showcasing a level of detail that ensures each piece, despite being reasonably priced, appears and feels like a designer item. The thoughtful design approach truly sets its offerings apart, especially evident in the meticulous cuts and well-placed pleats of its trousers. As an editor who has tried a wide variety of COS trousers, I wanted to take a moment to highlight the very best options available.

      Style Observations: I've noticed many influencers wearing COS trousers as well. Personally, I'm known for typically opting for trousers or jeans. While dresses and skirts may occasionally make an appearance during the warmer months, the versatility and relaxed elegance of a great pair of trousers always pull me back in. Over the years, I’ve tested numerous trousers, from high-end designer pieces to budget-friendly options, and COS remains the brand I continuously return to. To put it simply, I'm quite particular about tailored trousers, but so far, I haven't come across a COS pair that I don't fall in love with.

      By now, the brand must be well aware of its strong reputation in this category. It has had popular styles for years, including the much-loved Relaxed Twill Wide-Leg Trousers, which frequently sell out and are restocked. With every new season, the brand continues to offer its classics—showing the kind of confidence I appreciate—while also introducing trendy designs. This could mean cargo styles, barrel-leg shapes, or various fabric options such as wool, corduroy, denim, and linen for spring and summer.

      Whether you’re drawn to timeless pieces or the more unique designs, this high street brand excels in creating each piece as a lasting addition to your wardrobe. For those looking for classic tailoring, there’s a range of impeccably draped straight, slim, or wide-leg trousers, while those seeking bolder styles can find options featuring utility details, wrap-front waistbands, and extra-wide barrel legs this season. In terms of fit, I’ve consistently found COS styles to align with true sizing, though it can vary based on the specific style. Designs with a looser, oversized fit tend to run larger, allowing for size adjustments depending on whether you prefer a more traditional fit or a statement look. If you’re between sizes, frequently fluctuate, or enjoy experimenting with styling, keep an eye out for COS trousers that include adjustable tabs inside the waistband—a feature I wish more brands would adopt! Keep scrolling to discover the best COS trousers.

      **Shop the Best COS Trousers**

      **Best COS Wide-Leg Trousers**

      COS

      *Relaxed Twill Wide-Leg Trousers*

      This pair catapulted COS to recognition among fashion insiders. They’re definitely worth a try, no matter the color you choose.

      COS

      *Relaxed Twill Wide-Leg Trousers*

      This new navy version is incredibly stylish.

      COS

      *Pleated Wool-Blend Tulip Trousers*

      Not precisely wide-leg, barrel, or slim—the tulip style is the effortlessly chic trouser silhouette COS is championing for 2026. Soon, they will be spotted on the most fashionable individuals.

      COS

      *Corduroy Wide-Leg Trousers*

      Spring is approaching! Grab a pair.

      COS

      *Satin Wide-Leg Trousers*

      Fluid satin wide-legs are these versatile trousers you didn’t know you needed. Office? Dinner and drinks? Vacation? They work for all occasions.

      COS

      *Corduroy Straight-Leg Trousers*

      COS's corduroy material has a beautiful weight. Just see how these trousers drape! They’ll remain in excellent condition for years.

      **Best COS Barrel-Leg Trousers**

      COS

      *Pleated Barrel-Leg Wool Trousers*

      Perfect for the office, the slightly cropped length makes them easy to pair with slim ankle boots, heels, loafers, or ballet flats.

      COS

      *Elasticated Barrel-Leg Trousers*

      Combining comfort and style. It's no surprise these are already flying off the shelves after just being released.

      COS

      *Wool-Blend Barrel-Leg Trousers*

      A timeless pair of smart trousers that are always in vogue.

      I would gladly take this entire outfit! I adore how these trousers look with a slim low-heel boot.

      COS

      *Utility Barrel-Leg Trousers*

      Trust me, you’re going to see these all over social media.

      **Best COS Straight & Slim Trousers**

      COS

      *Slim Straight-Leg Trousers*

      COS

      *Slim-Leg Cropped Trousers*

      COS

      *Slim Wool-Blend Trousers*

      Did someone mention French girl style?

      **Best COS Jeans**

      COS

      *Reprise Straight-L

I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones. I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones.

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I’ve tried on numerous COS trousers—from wide-leg to barrel styles, and these are the best ones.

COS is recognized for its outstanding trousers, and after testing numerous pairs, I've gathered the top styles in one succinct selection.