Field Jackets: The Ultimate Guide to Britain's Most Versatile Outerwear

The field jacket is the unsung hero of British wardrobes—a military-inspired piece that seamlessly bridges the gap between practicality and style. Originally designed for soldiers in the field, this structured yet relaxed jacket has evolved into one of the most versatile pieces you can own, perfect for our unpredictable weather and effortlessly chic when styled correctly.

As someone who's spent years helping women navigate the complexities of outerwear, I can tell you that the field jacket is worth every penny of investment. It's the piece that works equally well thrown over a slip dress for weekend markets or paired with tailored trousers for casual Friday at the office.

What Exactly Is a Field Jacket?

A true field jacket is characterised by its relaxed, boxy silhouette, multiple functional pockets (usually four at minimum), and sturdy construction. The classic version features a lightweight cotton or cotton-blend fabric, snap or button closures, and a slightly longer length that hits around the hip. Think structured but not stiff, practical but not utilitarian.

The beauty lies in the details: epaulettes that add subtle structure to your shoulders, a drawstring waist that allows you to create shape when needed, and those brilliant pockets that actually hold your essentials. Unlike a blazer that demands formality or a bomber that skews casual, the field jacket occupies that perfect middle ground.

Why Every Woman Needs a Field Jacket

I've witnessed countless "aha" moments when clients try on their first well-fitting field jacket. It's transformative because it works with virtually everything in your wardrobe whilst adding instant polish to the most basic outfits.

The structured shoulders create a flattering silhouette without the severity of a blazer, whilst the relaxed fit accommodates layering beautifully. In Britain's changeable climate, this adaptability is invaluable—you can wear it as a light outer layer in spring, over knitwear in autumn, or under a wool coat in winter.

Styling Your Field Jacket Like a Pro

The Effortless Weekend Look

Pair your field jacket with straight-leg jeans, a classic white t-shirt, and leather trainers. Roll the sleeves slightly and leave it unbuttoned for that perfectly undone aesthetic. This combination works whether you're running errands or meeting friends for brunch.

Elevated Casual for Work

Layer your field jacket over a silk camisole with tailored trousers and pointed-toe flats. The contrast between the structured military detailing and feminine underlayers creates visual interest whilst remaining work-appropriate for casual offices.

Evening Sophistication

This might surprise you, but a field jacket works beautifully over a midi dress with heeled ankle boots. The juxtaposition of tough and feminine creates an effortlessly cool evening look that's neither too dressy nor too casual.

Finding Your Perfect Fit

The ideal field jacket should allow room for layering without looking oversized. The shoulders should sit naturally—avoid anything too fitted or too slouchy. The length should hit at your hip bone or slightly below, and you should be able to button it comfortably with a jumper underneath.

Pay attention to sleeve length; they should hit at your wrist bone when your arms are relaxed. If they're slightly long, you can always roll them, which actually enhances the casual aesthetic.

Best Field Jacket Brands by Budget

High Street Heroes (Under £100)

Arket - Their organic cotton field jacket is beautifully cut with excellent attention to detail. The fit is modern without being too trendy, and the quality rivals pieces costing twice as much.

Cos - Known for their architectural approach to design, Cos offers a more structured field jacket that works particularly well for professional settings. The proportions are spot-on for petite to average heights.

Whistles - Their field jackets often feature interesting details like contrast stitching or unexpected colours whilst maintaining the classic silhouette. Perfect for those wanting something slightly different.

Premium Picks (£100-300)

Ganni - The Danish brand brings a contemporary edge to the classic field jacket with interesting textures and colours. Their sizing tends to be generous, so consider sizing down.

Everlane - Their cotton field jacket is a masterclass in minimalism. The cut is exceptionally flattering, and the quality justifies the price point. Available in several colourways beyond the traditional khaki.

A.P.C. - The French brand's take on the field jacket is refined and slightly more fitted than traditional versions. Excellent for those who prefer a more polished aesthetic.

Designer Investment Pieces (£300+)

Isabel Marant Étoile - Their field jackets combine Parisian chic with military functionality. The fit is impeccable, and the details are what you'd expect at this price point.

Rag & Bone - Known for their exceptional tailoring, their field jackets are cut to flatter whilst maintaining the relaxed aesthetic. The fabric weight is perfect for year-round wear.

Vince - Their luxe approach to casual wear translates beautifully to field jackets. Expect premium fabrics and impeccable construction that will last for decades.

Caring for Your Field Jacket

Most field jackets benefit from occasional professional cleaning rather than frequent washing, which can break down the fibres and affect the shape. Between cleans, air them out after wear and spot-clean any marks promptly.

Store your jacket on a proper hanger to maintain the shoulder shape, and avoid cramming it into overcrowded wardrobes where it might develop permanent creases.

Perfect Your Field Jacket Fit with Tellar

Finding the right size in different brands can be frustrating, especially with field jackets where fit is crucial for both style and functionality. This is where tellar.co.uk becomes invaluable.

As the UK's leading sizing tool, Tellar instantly matches your body measurements to over 1,500 brands, taking the guesswork out of online shopping. Here's how it works:

1. Measure once using your bust, waist, hip measurements, or input your size from a brand that fits you perfectly
2. Use the tellar.co.uk - Master the art of finding your perfect fit
3. tellar.co.uk - Perfect for styling under your field jacket
4. Ultimate Guide to Jackets & Best Buys - Compare field jackets with other essential outerwear

Whether you're building a capsule wardrobe or updating your style, Tellar provides the tools and expertise to make informed decisions that work for your body, lifestyle, and budget.

The Bottom Line

A well-chosen field jacket is one of the smartest investments you can make in your wardrobe. It's the piece that elevates casual looks, adds edge to feminine outfits, and provides that effortless British style we all aspire to achieve.

Start with one classic piece in khaki or navy, master the styling, and then consider adding different colours or textures to your collection. With the right field jacket and the confidence to wear it well, you'll wonder how you ever managed without this versatile essential.