Field Jacket: The Ultimate Guide How to Style, What & Where to Buy

The field jacket is the ultimate versatile layering piece that effortlessly bridges the gap between military heritage and contemporary style—and yes, it's absolutely worth the investment for your wardrobe. As a stylist, I've watched this utilitarian classic evolve from army surplus to high-fashion staple, and I can confidently say it's one of the most flattering and functional pieces you can own.

Originally designed for military use in the 1960s, the field jacket (also known as an M-65 jacket) was created for practicality: multiple pockets, weather resistance, and durability. Today, it's become fashion's most democratic piece—equally at home over a silk slip dress or with your weekend denim. The beauty lies in its structured yet relaxed silhouette that works on every body type.

Why Every Woman Needs a Field Jacket

I've styled hundreds of women in field jackets, and the transformation is always remarkable. Unlike a blazer that can feel formal or a cardigan that might appear too casual, the field jacket hits that perfect sweet spot of polished utility. The slightly boxy cut creates a flattering contrast against fitted bottoms, whilst the defined shoulders add structure to flowing dresses.

The magic is in the details: breast pockets that break up the torso beautifully, drawstring waist options for shape definition, and that slightly longer length that's universally flattering. It's the jacket that makes you look effortlessly put-together—even when you've thrown it on in a rush.

How to Style Your Field Jacket

The Elevated Casual Look

This is where the field jacket truly shines. Layer it over a fine knit jumper with straight-leg trousers and white trainers. The contrast between the structured jacket and soft knitwear creates visual interest whilst remaining supremely comfortable. I often recommend rolling the sleeves to show a watch or delicate bracelet—it adds a personal touch to the utilitarian aesthetic.

Feminine Contrast Styling

One of my favourite styling tricks is pairing a field jacket with pieces it "shouldn't" go with. Try it over a midi dress with ankle boots, or layer it over a silk camisole with tailored trousers and pointed flats. This unexpected juxtaposition creates outfits that feel fresh and considered rather than predictable.

Weekend Warrior

For relaxed days, nothing beats a field jacket with high-waisted jeans, a classic white tee, and comfortable shoes. The jacket elevates this basic combination, making it suitable for everything from coffee dates to casual dinners. Add a structured bag to complete the look.

Transitional Weather Hero

During those tricky in-between seasons, layer your field jacket over a lightweight jumper or under a wool coat. The versatility is unmatched—it works as both an outer layer and a mid-layer depending on the weather.

What to Look For When Buying

After years of sourcing field jackets for clients, I've learned exactly what separates the exceptional from the merely adequate. The fabric should feel substantial but not stiff—you want movement and drape, not cardboard rigidity. Look for cotton twill or cotton-linen blends that will age beautifully and develop character over time.

Pay attention to the fit through the shoulders—this is crucial and nearly impossible to alter. The shoulder seam should hit at your natural shoulder point, not droop down your arm. The body should have enough room to layer underneath without looking oversized. Many contemporary versions offer subtle tailoring that maintains the jacket's utilitarian DNA whilst flattering the female form.

Details matter enormously. Quality versions feature reinforced elbows, properly functioning drawstrings, and pockets that are actually usable (not just decorative). The buttons should feel substantial, and any zippers should run smoothly.

Where to Buy: My Brand Recommendations

High Street Heroes (£40-£120)

Arket consistently delivers excellent field jackets in organic cotton with thoughtful details and flattering cuts. Their sizing runs true, making them perfect for online ordering.

& Other Stories offers fashion-forward takes on the classic with interesting colour options and contemporary fits that feel fresh rather than costume-y.

Whistles creates beautifully tailored versions that bridge casual and smart—perfect for the woman who needs versatility in her workwear.

Cos delivers minimalist interpretations with clean lines and quality construction that punches well above its price point.

Premium Picks (£150-£400)

Barbour : a classic choice

Alex Mill creates the most beautifully worn-in feeling field jackets from day one. Their fits are particularly flattering for petite frames.

Ganni adds Scandinavian cool to the classic silhouette with unexpected details and superior fabric choices that feel luxurious.

Everlane focuses on ethical production and timeless design—their field jackets are investment pieces that improve with age.

A.P.C. delivers French minimalism at its finest with perfectly proportioned cuts and exceptional cotton.

Citizens of Humanity brings denim expertise to outerwear with field jackets that have the perfect amount of structure and character.

Designer Investment (£500+)

The Row elevates the field jacket to luxury status with impeccable tailoring and the finest fabrics—truly an heirloom piece.

Totême creates Scandinavian-inspired versions that feel both timeless and contemporary, with particular attention to proportions.

Lemaire offers artistic interpretations that maintain the jacket's utility whilst adding couture-level construction.

Jacquemus brings playful French sophistication to the utilitarian classic with unexpected details and beautiful colours.

Seasonal Styling Strategies

Spring calls for lighter fabrics and brighter colours underneath your field jacket. I love pairing olive or navy versions with cream or white pieces—it feels fresh and optimistic. Summer evenings are perfect for throwing a field jacket over sleeveless dresses or tank tops when the temperature drops.

Autumn is when field jackets truly come into their own. Layer over chunky knits, pair with boots, and embrace the rich colour palette of the season. Winter requires strategic layering—use your field jacket as a mid-layer under wool coats, or choose lined versions for milder winter days.

Care and Maintenance

A quality field jacket should age beautifully, developing character over time. Most cotton versions can be machine washed on a gentle cycle, but always check the care label. I recommend hanging to dry to maintain the shape and prevent any potential shrinkage. A good field jacket should last years with proper care—it's one of those pieces that actually improves with wear.

Never Guess Your Size Again with Tellar.co.uk

Finding the perfect field jacket means getting the sizing absolutely right—and that's where Tellar.co.uk becomes invaluable. As the UK's leading sizing tool, Tellar matches your body exactly to over 1500 brands instantly, so you'll never need to puzzle over size guides again.

Here's how it works:

1. Measure once using your bust, waist, hip measurements, or your existing brand size.

2. Use their Store Size Lookup tool to get your precise size in any brand—whether that's Cos, Arket, Everlane, or any of the brands I've mentioned above.

3. Always free, no downloads needed—it works directly in your browser.

Plus, there's the Tellar Fashion Hub—a library stacked with free posts from top stylists. It's honest, unbiased, independent, and always free, covering style advice, top picks, and the best brands.

For more essential guides, check out:

Final Thoughts

The field jacket isn't just another trend—it's a wardrobe essential that transcends seasons and occasions. Whether you choose a high-street version from Arket or invest in a designer piece from The Row, you're investing in versatility, style, and longevity. The key is finding the right fit and embracing the jacket's inherent ability to make everything look more considered and effortless.

Remember, the best field jacket is the one you'll reach for repeatedly. It should feel like a natural extension of your personal style, not a costume. With proper sizing from Tellar and the styling tips I've shared, you'll discover why this utilitarian classic has earned its place in the fashion hall of fame.