The ideas here run from a structured blazer to a knit polo worn with trousers, so the right one depends on how formal your office expects you to look.
A polished office calls for the structured blazer, while a looser one lets you go with a short-sleeve button-down and tailored trousers or a knit polo. If you can’t tell yet, copy your manager and dress one notch above them.
1. Structured Blazers
A blazer with real structure holds its shape over a thin shirt, which is why it works in summer: the jacket does the formal work while the rest stays light.
Pink with cream trousers and an open-collar white shirt is a soft combination that still reads as dressed.
Brown suede loafers tie it together. Skip the tie, and if the office is warm, carry the blazer and put it on for meetings.
2. Short-Sleeve Button-Downs with Tailored Trousers
Short sleeves on a button-down cut the bulk at the arm, and tucked into navy tailored trousers with a brown belt the shirt looks deliberate instead of casual. Light beige keeps the top half calm against the darker bottom.
Check the sleeve hem.
It should end around mid-bicep and sit close, not flap like a T-shirt. Keep the belt and shoes in the same brown.
3. Embrace Light Colors
Light colors are the simplest summer swap I know. Dusty rose on top and light grey trousers below stay muted, so the outfit looks office-appropriate even though nothing in it is dark.
Off-white loafers with the ankles showing finish the look, and a black belt keeps one anchor point.
Choose one soft color for the shirt and let the trousers stay neutral. Pale trousers can show wear faster, so treat that as the cost.
Experiment, but keep it chic! Summer office dressing doesn’t mean you should look like you’re going to the beach—reserve tank tops, flip-flops, and shorts for leisure activities.
— Elle
4. Knit Polo with Trousers
A waffle-knit polo in beige has texture that a flat cotton piece lacks, so it looks richer without any extra layers.
Tucked into dark tailored trousers with a brown belt, it takes the place of a dress shirt on days when a tie would feel absurd.
I prefer the tuck. Left out, a knit polo can look like weekend wear, and the belt is what makes it business casual.
Dress Code Understanding
Business casual sits between a suit and weekend clothes: traditional pieces mixed with relaxed ones, still professional enough for an office.
Where you land depends on the industry. Creative agencies lean looser, and finance leans more polished.
If you’re unsure, copy your manager. Dress one notch above what they wear for the first few weeks, then adjust once you see what the office actually tolerates.
Summer heat doesn’t change the category. A lighter fabric makes the outfit more comfortable, but it doesn’t make a tank top or beach sandals acceptable.
Office Climate Considerations
July puts you through 2 climates before lunch: sticky heat on the walk in, then air conditioning set low enough to chill a conference room.
Dress for the commute, then keep one extra layer at your desk so the air conditioning doesn’t decide your afternoon.
Leave it on your chair instead of wearing it through the heat, and you avoid the bulk on the way in.
For the layers closest to your skin, stick with cotton, linen blends or lightweight silk, since all three let heat and moisture escape. Then the layer is optional, not a rescue.
Professional Appearance
Fabric weight matters less than condition. A light shirt that is clean, pressed and fitted reads as professional; a heavy one that is rumpled doesn’t.
Linen is where men slip most.
It wrinkles by nature, and a little creasing is fine, but a shirt that looks slept in undoes the whole outfit. Steam it before you leave, and hang it instead of folding it in a drawer.
Fit counts as much as the iron. Clothes that hang loose or pull tight look careless, however good the cloth.
Frequently Asked Questions
What dress code is under business casual?
Think of business casual as the middle rung: a notch below a full suit, a clear step above what you wear on a Saturday.
Tailored pieces like a blazer or chinos get paired with softer ones like a knit polo or loafers, and the result still passes in an office.
Offices differ: a creative agency will let you go looser, and a bank or law firm expects something closer to a suit.
What to wear in the summer for work?
Pair a light polo or short-sleeve button-down with tailored trousers and a brown belt, and keep the shoes the same brown.
For hot weather I reach for cotton, linen blends and light silk, because all three let heat and sweat escape instead of trapping them. Heat doesn’t lower the standard, so tank tops and beach sandals stay home.
What does business casual mean in summer?
It means the same professional standard in lighter fabrics. Your office and industry decide how formal to go, so if you’re unsure, dress one notch above your manager for the first few weeks.
How do you keep linen looking professional at work?
Steam the shirt before you leave and hang it instead of folding it in a drawer.
Linen creases by nature, and some wrinkling reads as relaxed; a shirt that looks like you slept in it ruins everything else you put on. A clean, pressed, well-fitted light shirt beats a heavy rumpled one.
