Honest & Unbiased Best Buys: Single Breasted Blazers 2026

The single-breasted blazer remains the ultimate wardrobe workhorse for 2026, offering unparalleled versatility whether you're dressing for the boardroom, weekend brunch, or evening drinks. As someone who's styled countless women over the years, I can confidently say that this timeless piece deserves a prime spot in every woman's wardrobe. The beauty of a well-cut single-breasted blazer lies in its ability to instantly elevate any outfit whilst remaining effortlessly chic.

This year, I'm seeing a shift towards more relaxed fits with subtle structured shoulders, longer line silhouettes, and rich textures that work seamlessly from season to season. The key is finding pieces that work with your lifestyle and body shape, rather than chasing fleeting trends.

Why Every Woman Needs a Single-Breasted Blazer

After styling women for over a decade, I've witnessed the transformative power of a perfectly fitted blazer. Unlike double-breasted styles, single-breasted blazers offer a more streamlined silhouette that flatters virtually every body type. They're the ultimate problem-solver piece—throw one over a simple tee and jeans for instant sophistication, or layer over a slip dress for effortless evening elegance.

The single button closure creates a clean, elongating line that's particularly flattering for petite frames, whilst the classic lapels add structure without overwhelming smaller busts. For curvier figures, the open front styling allows for beautiful draping that skims rather than clings.

How to Style Your Single-Breasted Blazer

The Office Edit

Pair with tailored trousers in complementary tones—think navy blazer with charcoal grey trousers or camel with cream. Always ensure there's breathing room around the bust and hips. The hem should hit at your hip bone for the most flattering proportions.

Weekend Casual

Layer over a striped Breton top with straight-leg jeans and white trainers. The contrast between structured and relaxed creates that effortlessly chic aesthetic we're all after.

Evening Elegance

Throw over a midi dress with heeled ankle boots, or wear open over a silk camisole with tailored trousers and statement jewellery.

High Street Heroes

Zara continues to deliver impeccably cut blazers at accessible prices. Their wool-blend options offer structure without stiffness, perfect for transitional weather.

COS excels at minimalist design with architectural details. Their blazers feature clean lines and premium fabrics that elevate any outfit instantly.

Mango offers fashion-forward cuts with excellent value. Look for their linen blends for summer and wool options for autumn/winter.

Whistles delivers contemporary cuts with subtle design details. Their blazers strike the perfect balance between modern and timeless.

Jigsaw focuses on quality fabrics and flattering fits. Their blazers are investment pieces that will serve you for years.

Reiss offers sophisticated styling with attention to detail. Their blazers work beautifully for both professional and social occasions.

H&M provides trend-led options at budget-friendly prices. Perfect for experimenting with colours and textures without the commitment.

M&S has significantly improved their tailoring game, offering classic cuts with modern touches at excellent value points.

Premium Picks

Theory blazers are renowned for their impeccable fit and use of innovative fabrics. Their crepe and wool blends offer comfort without sacrificing structure.

Equipment brings Parisian chic to blazer design, with relaxed fits that still maintain sophistication.

Sandro offers that distinctly French approach to tailoring—effortlessly elegant with subtle feminine details.

Luxury Investment Pieces

The Row creates blazers that are architectural marvels, with impeccable construction and timeless appeal.

Saint Laurent delivers that coveted Parisian edge with sharp shoulders and confident silhouettes.

Stella McCartney combines sustainable practices with beautiful tailoring, creating blazers that feel as good as they look.

Independent Brand Discoveries

Lemaire offers understated luxury with relaxed fits that challenge traditional blazer conventions whilst maintaining sophistication.

Ganni brings a playful edge to classic tailoring, with unexpected colour combinations and contemporary cuts that appeal to the modern woman.

My Top Tips for Blazer Shopping

Always try before you buy—blazer sizing varies dramatically between brands. The shoulders should fit perfectly as this is nearly impossible to alter. Ensure you can move your arms comfortably and the blazer doesn't pull across the back.

Consider your lifestyle. If you're petite, avoid oversized styles that overwhelm your frame. Taller women can embrace longer line blazers for elegant proportions.

Invest in neutral colours first—navy, black, camel, and grey will serve you endlessly. Once you've covered the basics, experiment with textures like bouclé, corduroy, or unexpected colours.

Discover Your Perfect Blazer Size with Tellar

Finding the right blazer size across different brands can be frustrating—what's a size 12 at one retailer might be a 14 at another. That's where Tellar.co.uk becomes invaluable.

How Tellar Works

Measure once using your bust, waist, hip measurements, or your existing brand size. Use their Store Size Lookup tool to get your precise size in any brand—COS, Reiss, Everlane, Arket & more. Always free, no downloads needed—works in-browser.

Tellar is the UK's leading sizing tool, matching your body exactly to 1500+ brands instantly. Never look at a size guide again!

Tellar Fashion Hub

Beyond sizing, Tellar offers a comprehensive Fashion Hub—a library stacked with free posts from top stylists. Honest, unbiased, independent advice covering every fashion query.

For more styling inspiration, explore:

Final Thoughts

The single-breasted blazer isn't going anywhere—it's a timeless piece that adapts to every trend whilst maintaining its classic appeal. Whether you invest in a luxury piece or find a perfect high street option, the key is choosing something that makes you feel confident and comfortable.

Remember, the best blazer is the one you'll actually wear. Consider your lifestyle, colour preferences, and how it fits into your existing wardrobe. With the right piece and perfect sizing through Tellar, you'll have a go-to garment that serves you beautifully for years to come.