Introduction
Dressing for work in the summer is a particular kind of challenge. The commute is a sauna, the office air conditioning is set to arctic, and the dress code seems to have been written for a climate that does not exist. The goal, as one guide puts it, is “looking entirely put-together while feeling like you are wearing next to nothing”.
The good news is that 2026 has brought a welcome shift in how workplaces approach summer dressing. Office attire is “much more relaxed than it might have been a few years ago,” and even in more traditional settings, there is usually some leeway when the temperature rises. New polling from Ipsos, conducted during the first heatwave of 2026, found that 62% of Britons believe shorts are acceptable for men to wear in the workplace, and 63% say the same for women. Close to three in five adults (59%) consider short skirts or short dresses acceptable office attire for women during high-temperature periods.
This guide covers everything you need to know about clothes to wear to work in the summer of 2026. From the best breathable fabrics and the key outfit formulas to body type guidance, UK retailers, plus size options, sustainable choices, and the items to avoid, it is a practical resource for staying cool and polished all season.
The Best Breathable Fabrics for Summer Workwear
The fabric you choose matters more in summer than at any other time of year. A garment made from the right fibre will keep you cool, dry, and comfortable through a long day. The wrong one will leave you sweating through your meetings.
Linen
Linen is the gold standard for hot-weather dressing. Its breathable structure “allows air to circulate,” making it the most effective natural fibre for keeping cool. For an office setting, stylist Fabio Immediato recommends “linen, silk and some light cottons” as the best fabrics of summer, noting that they are “breathable, still look polished enough for meetings”.
Linen does wrinkle, which some people find off-putting for formal work settings. However, linen blends that incorporate a small amount of synthetic fibre can reduce creasing while retaining most of the breathability. A linen-blend blazer that “breathes through summer” is a worthwhile investment.
Cotton
Cotton is soft, breathable, and durable. Lightweight cottons such as poplin and seersucker are particularly good for summer workwear because they “feature a loose weave for maximum airflow”. A breathable cotton shirt is a warm-weather essential, “perfect for pairing with jeans when you want an effortless yet polished look”.
Silk
Silk is naturally temperature-regulating, responding to body heat rather than simply sitting on top of it. It feels smooth against the skin and drapes beautifully, making it suitable for both structured and flowing silhouettes. A lightweight silk blouse or slip dress works well for summer office dressing.
Viscose, Modal, and Tencel
Semi-synthetic fabrics including modal (sometimes called Tencel) and viscose “absorb moisture too,” making them a good choice for hot conditions. They are soft, breathable, and drape well. Tencel is a particularly sustainable option, made from wood pulp in a closed-loop process.
What to Avoid
“The main goal is to not feel uncomfortable, either physically (so many opportunities for sweat) or professionally”. Synthetic fabrics like polyester “trap heat, so not only will you sweat, but that sweat will have no means of escape”. Heavy wool, thick denim, and non-breathable blends should be avoided in summer workwear.
Summer Work Outfit Formulas That Work
Every summer work outfit can be reduced to a few reliable formulas. The key is to balance polish with breathability and to choose silhouettes that skim rather than cling.
The Linen Suit
A linen suit is one of the most elegant solutions to summer work dressing. Princess Kate’s Wimbledon look proved the chicest heatwave hack: “opting instead for a two-piece linen suit by designer Gabriela Hearst”. A linen blazer with matching trousers or shorts “will instantly look chic and work-ready” when thrown over a summer dress or tailored trousers. For a more affordable version, TU at Sainsbury’s introduced 100% linen to its collection for the first time, with over 20 styles starting from just £20.
The Midi Dress
The midi dress is the workhorse of summer workwear. It is “easy to wear” and can be “dressed up or down depending on the day”. For summer, look for a lightweight fabric (linen, cotton, or a blend) and a relaxed silhouette that skims the body. A floaty cotton dress is a classic choice for hot days.
The Tailored Shorts Suit
Tailored shorts are increasingly accepted in workplace settings. The Ipsos data shows that 63% of Britons support women wearing shorts to work in hot weather. Stylist Amanda Wakeley says shorts are “the trickiest item to get right in a professional environment” and recommends “tailored, longer shorts paired with a crisp shirt or lightweight blazer”. The rule of thumb: “if any part of your bare leg touches the ergonomic office chair… then they’re too short”. Karen Millen’s Premium Linen Tailored Mid Rise Shorts (£89, reduced to £36) are a good benchmark, with a “wide leg silhouette, a minimal design for easy styling” and a “comfortable high waistline”.
The Wide-Leg Trouser
Tailored wide-leg trousers are a summer workwear staple. They offer “all the polish of traditional work trousers without trapping heat”. Look for lightweight fabrics like linen, Tencel, or lightweight cotton, and a looser silhouette that allows air to circulate. Karen Millen’s Premium Linen Tailored Pleated Wide Leg Trousers (£179, reduced to £54) are “an elevated take on classic tailored trousers” that can be styled “from workwear to smart occasions”.
The Shirt Dress
The shirt dress is breezy, cool, and never goes out of style. It works for casual days and can be dressed up for work with a belt and block heels. A classic white shirt dress in a lightweight cotton or linen blend is a reliable summer work piece.
The Oversized White Shirt
An oversized white shirt is one of the most versatile pieces in a summer work wardrobe. For a creative office, pair it with “a sleek, column mini skirt” and “chunky gold earrings and some ballet flats”. For a more traditional setting, tuck it into tailored trousers or layer it over a slip dress.
How to Dress for the Office Heatwave
Layering Is Essential
The biggest challenge in summer office dressing is the temperature whiplash between the commute and the air-conditioned office. The answer is “layering and breezy fabrics”. A lightweight blazer, a fine-knit cardigan, or a linen overshirt can be removed on the journey and put on at your desk. “Lightweight knits worn in meetings then draped over shoulders on journeys home” is a reliable formula.
Choose the Right Colours
Lighter colours reflect heat rather than absorbing it. Immediato recommends “white, navy, ecru, oatmeal, brown” as a neutral, understated colour palette for the office. Caccamo agrees, citing “ivory, taupe, dove gray, chambray blue, blush” as shades that “all give the vibe that, ‘I’m calm, cool and won’t pit-stain through this meeting'”.
The Right Undergarments
For women, “bright white bras under white shirts can be the most visible” according to the Evening Standard. The solution is to “look for a shade closer to your skin tone, or – counterintuitively – dark reds work well”. Choosing the right undergarments is essential for a sleek, polished line under lightweight summer fabrics.
What to Avoid
The Evening Standard notes several summer workwear pitfalls for women. “Summer lace is a spectrum” and “midi dresses with multicoloured embroidery, or tassels, or those little mirrored circles are all nos”. The Guardian advises avoiding “anything that gives ‘it’s 5 o’clock somewhere’ energy – this includes tiers, crochet and palm prints”. Flip-flops remain a professional taboo, with 64% of the public viewing them as unacceptable for men and 58% for women.
Summer Workwear for Every Body Type
There is no single “ideal” body type. The goal is to find silhouettes that flatter your shape and make you feel confident, comfortable, and professional.
Hourglass
The hourglass figure has a defined waist with bust and hips of similar size. Wrap dresses, belted midi dresses, and fitted pencil skirts that follow the waist work beautifully. A linen wrap dress is a classic summer option.
Pear
Pear-shaped figures have a smaller bust and shoulders with fuller hips. A-line skirts and dresses balance the silhouette by skimming over the hips. Structured shoulders and statement necklines draw the eye upward.
Apple
Apple-shaped figures have a fuller midsection. Empire waist dresses and flowy midi options are flattering. V-necklines create a break on the upper torso, drawing the eye upward.
Rectangle
Straight, athletic figures can wear a wide range of silhouettes. Belting at the waist creates definition. Fit-and-flare styles and peplum details add curves.
Petite
Petite frames look strongest in column or sheath silhouettes, which lengthen the line. A high-waisted wide-leg trouser with a fitted top can also work beautifully. Roman UK offers petite workwear “cut properly instead of simply scaled down”.
Plus Size
Plus-size figures look strongest in pieces cut to actual measurements rather than scaled-up patterns. Roman UK’s plus size workwear “covers plus size work attire & petite workwear,” with styles designed to “flatter and empower”. Simply Be offers “office dresses in sizes 10-32,” with “lightweight summer work dresses to keep you cool” and “a flattering fit, ultimate comfort and impeccable style”.
Sizing varies by brand, country, and manufacturer. Always check the specific brand’s size chart rather than assuming your usual size will fit.
Plus Size Summer Workwear in the UK
The plus size workwear market has expanded significantly, with more options than ever for flattering, breathable summer office attire.
Key UK Retailers
Roman UK offers plus size workwear in sizes 30-32, including “summer work trousers & office shirts”. The Curve Cropped Stretch Trouser (£24) is a popular option, and the range includes “petite and plus-size work attire”.
Simply Be offers “office dresses in sizes 10-32,” with “lightweight summer work dresses” designed for “a flattering fit, ultimate comfort and impeccable style”.
Yours Clothing offers plus size shirt dresses in UK sizes 14-40, designed for smart casual style and office wear.
Body-Inclusive Styling
The goal is not to conceal but to feel confident. A well-fitted outfit in a flattering silhouette will always look better than a shapeless one. Sizing varies by brand. Always check the specific brand’s size chart and read reviews for fit guidance.
Sustainable Summer Workwear
Sustainability is increasingly important in fashion, and workwear is no exception. There are more lower-impact options than ever for building a summer office wardrobe.
Sustainable Fabrics
Tencel Lyocell: A sustainable fibre made from wood pulp in a closed-loop process. It is soft, breathable, and moisture-wicking.
Organic cotton: Grown without harmful chemicals. Craghoppers’ Wakefield Pocket Workwear T-shirt is made from “organic cotton Jersey or marl organic cotton-rich Jersey” and is “sun-protective and anti-odour for hot working conditions”.
Recycled materials: Some brands use recycled polyester (rPET) and organic cotton blends for workwear. JSD creates “bespoke, sustainable workwear in the UK” using “recycled polyester (rPET), organic cotton blends, and bamboo textiles”.
Sustainable Brands
Finisterre offers hemp and organic cotton blend short dungarees, made from a “soft and breathable blend of hemp and organic cotton” and inspired by “utility workwear”.
Alexandra Workwear offers a sustainable wellbeing range with “moisture wicking properties” made using “sustainable sourced fabric”.
The Textile Exchange provides certification and guidance on preferred fibres, including organic cotton, recycled materials, and other lower-impact alternatives.
Where to Shop for Summer Work Clothes in the UK
High Street and Department Stores
Marks & Spencer stocks Ted Baker’s tailored dresses, Live Unlimited London for sizes 12-28, and its own range of summer workwear including lightweight blazers and tailored trousers.
Karen Millen offers a Premium Linen Tailored Suit Set including a blazer, mid-rise shorts, and pleated wide-leg trousers. The blazer is described as “the ultimate workwear staple” with “a lightweight, breathable feel that effortlessly calls to summer months”.
Next delivers stylish summer workwear at accessible prices, including breezy midi dresses and tailored separates.
Roman UK offers a comprehensive collection of workwear including “women’s work trousers & coats” and “smart casual workwear for women” designed for “boardroom meetings to casual Fridays”.
Simply Be offers work dresses in sizes 10-32, with a focus on “lightweight summer work dresses”.
TU at Sainsbury’s introduced 100% linen to its collection for the first time, with over 20 styles starting from just £20.
Jigsaw offers the Linen Notch Lapel Blazer, described as one of the best copy-Kate pieces available “in all sizes”.
Mango offers a Seamless Linen Suit Jacket (£139.99) and a Blazer Suit 100% Linen (£99.99), both described as “natural, breathable and lightweight”.
Online and International
ASOS offers a broad range of summer workwear across mainline, Curve, Petite, and Tall.
Net-a-Porter offers elevated summer workwear, including tailored separates and the perfect flats.
Boden offers tailored linen suits in “cool teal or coral check,” described as “ideal for remaining relaxed while looking chic on hotter days”.
Common Mistakes to Avoid
Mistake 1: Wearing the Wrong Fabrics
Synthetic fabrics trap heat and moisture. Choose linen, cotton, silk, or Tencel instead. As one stylist put it, “Sticking to breathable but boss-worthy fabrics will help you beat the heat”.
Mistake 2: Forgetting About Layering
The office air conditioning may be fierce. Always have a lightweight layer (blazer, cardigan, or overshirt) that you can put on and take off as needed.
Mistake 3: Choosing Shorts That Are Too Short
Tailored shorts are acceptable in many offices, but “if any part of your bare leg touches the ergonomic office chair… then they’re too short”.
Mistake 4: Wearing Flip-Flops
Flip-flops “instantly signal leisure rather than professionalism and can make even the most polished outfit feel underdressed”. Woven flats are a better option.
Mistake 5: Ignoring the Dress Code
The City will have a “very different dress code to an edgy advertising agency”. Read your specific workplace culture and dress one notch above the baseline.
Mistake 6: Not Checking the Size Chart
Sizing varies significantly between brands. Always check the specific brand’s size chart and read reviews for fit advice.
Actionable Recommendations
- Invest in linen. A linen suit, a linen blazer, or a linen midi dress will keep you cool and polished all summer.
- Build a capsule wardrobe. A lightweight blazer, a midi dress, tailored wide-leg trousers, a shirt dress, and a linen shirt can create a week’s worth of summer work outfits.
- Choose breathable fabrics. Linen, cotton, silk, Tencel, and viscose are the best choices. Avoid polyester and other synthetics.
- Layer with intention. A lightweight layer is essential for navigating the temperature difference between the commute and the office.
- Try tailored shorts. If your office allows, a tailored shorts suit with a crisp shirt or blazer is a chic and practical summer option.
- Check the size chart. Sizing varies by brand. Always check the specific size guide and read reviews for fit advice.
- Consider sustainable options. Tencel, organic cotton, and recycled materials are increasingly available in workwear.
- Choose the right colours. Lighter colours reflect heat. White, navy, ecru, oatmeal, ivory, and chambray blue are all good choices.
Frequently Asked Questions
What should I wear to work in summer?
The best summer work clothes are made from breathable fabrics like linen, cotton, and silk. Tailored wide-leg trousers, midi dresses, linen suits, and shirt dresses are all appropriate. The key is to balance polish with breathability and to layer for air conditioning.
What are the best fabrics for summer workwear?
Linen is the best fabric for hot weather because its breathable structure allows air to circulate. Cotton, silk, Tencel, and viscose are also excellent choices. Avoid synthetic fabrics like polyester, which trap heat and moisture.
Can I wear shorts to work in summer?
Yes, in many workplaces. The Ipsos survey found that 63% of Britons believe shorts are acceptable for women to wear to work in hot weather. The key is to choose tailored, longer shorts (around the kneecap) and pair them with a crisp shirt or blazer.
What is the most versatile summer work outfit?
A linen suit is one of the most versatile options. The blazer can be worn over a summer dress or tailored trousers, and the trousers or shorts can be styled with a simple top. A midi dress is another reliable choice.
How do I stay cool in the office when there’s air conditioning?
Layer with a lightweight blazer, cardigan, or overshirt that you can remove on the commute and put on at your desk. A fine-knit cardigan or a linen jacket is ideal.
What should I avoid wearing to work in summer?
Avoid synthetic fabrics, flip-flops, overly short shorts, and anything that reads as too casual or too beachy. The Evening Standard advises avoiding “midi dresses with multicoloured embroidery, or tassels, or those little mirrored circles” for formal offices.
Where can I buy summer work clothes in the UK?
Marks & Spencer, Karen Millen, Next, Roman UK, Simply Be, TU at Sainsbury’s, Jigsaw, and Mango are all reliable options. ASOS and Net-a-Porter offer online options.
What are sustainable options for summer workwear?
Look for Tencel, organic cotton, and recycled materials. Finisterre, Alexandra Workwear, and JSD offer sustainable workwear options. The Textile Exchange provides certification and guidance on preferred fibres.
How do I dress for a summer work event or meeting?
A linen blazer over a midi dress or tailored trousers is a reliable choice. Choose breathable fabrics and a silhouette that skims the body. Keep accessories refined and let the outfit be polished but comfortable.
What shoes should I wear to work in summer?
Refined leather sandals, woven flats, ballet pumps, and loafers are all appropriate. Flip-flops are generally not acceptable. “Refined leather sandals can be entirely acceptable in many offices, provided they are clean and well maintained”.
Conclusion
Dressing for work in the summer of 2026 is about balance. The goal is to look polished and professional while staying cool and comfortable in rising temperatures. The good news is that workplaces are more relaxed than ever about summer attire, and the fashion industry has responded with breathable fabrics and flattering silhouettes designed specifically for warm weather.
The key is to choose the right fabrics (linen, cotton, silk, Tencel), build a capsule wardrobe around versatile pieces (a linen suit, a midi dress, tailored wide-leg trousers), and layer for the temperature difference between the commute and the office. From the linen suits at Karen Millen to the plus size workwear at Roman UK and Simply Be, from the sustainable options at Finisterre to the affordable linen at TU, there is a summer work wardrobe for every budget and every body.
The most important takeaway is this: you do not have to choose between looking professional and staying cool. With the right fabrics and silhouettes, you can have both. Use this guide as a starting point, then make it your own.
Read More: Workplace Clothes for Women 2026: Dress Codes & Trends
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