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A Week Of Men’s Spring Business Casual Outfits To Wear Now

RTO in style
three men dressed in business casual outfits, set against a background of a generic office

by Taylor Davies Updated: March 4, 2025

Products are curated by Style Girlfriend editors. Purchases through our links may earn us an affiliate commission.

Get inspired to RTO in style with a week’s worth of men’s spring business casual outfits, and shop your favorite pieces to add to your work wardrobe.

In my day job, I’m required to commute to a corporate office five days a week. As such, I consider myself to be SG HQ’s preeminent office style expert. I am quite literally reporting live to you from the trenches, you guys — namely, an open layout concept perched on a high floor of one of those very tall buildings in downtown Manhattan.

Here’s what I’ve learned about office style:

While strict business casual dress codes may still demand a full suit minus the tie, business casual — and its slightly breezier cousin “smart casual” — is more flexible than ever in 2025.

But getting dressed for the office five days a week (or three days! or two!) can still feel too heavy on your mental load, I get it.

So we’ve rounded up a week’s worth of business casual office style ideas that might actually get you excited about that “return to work” notice in your inbox.

Personally, I’m planning to print dozens of copies of this guide to navigating business casual workplace dress codes from our office printer and scatter everywhere from the kitchen to the conference room. These men need to know.

I’ll assume that none of you work at my company and, even if you do (Hi Greg?), you could use some style inspiration to break you out of your office wardrobe rut. And if not? Well, consider this your permission slip.

So together, let’s break free from the fleece vest bearing the company logo. Let’s think about layering options, unexpected colors and—gasp—shoes that are far from square-toed. 

Get inspired with 7 men’s business casual outfits for spring and shop the looks:

1. Sweater Polo with Penny Loafers

stylish man wearing a black quarter zip with olive green dress pants, white dress socks, and black penny loafers
@juliusgod

In 2025, business casual attire thankfully has broken out of the “khaki pants, blue button-up shirt, and a fleece vest” mold.

You get to inject more of your personality into your outfits — yes, even at the office. A look like the one above featuring a quarter zip sweater and dress pants doesn’t even feel that crazy, right? It’s downright conservative…that is, until you get to the jazzy white dress socks peeking out at the ankles. Form, meet function.

man wearing a black quarter-zip sweater over a white tee with dark dress pants
QUINCE

Mongolian cashmere quarter zip, $99
shop now
white dress socks
UNIQLO
Cotton-blend socks, $5
shop now
brown chinos
BONOBOS
The Chino 2.0, $99
shop now
black leather penny loafers
G.H. BASS
Larson Weejuns loafer, $175
shop now

2. Sport Coat with your Favorite (Nice) Sneakers

stylish man wearing a business casual outfit of a brown sport coat, dress shirt with plaid wool tie, jeans, and nike killshot sneakers
@theposhman

To me, this is what a business casual outfit has meant, and can continue to mean from here until eternity.

A sport coat, paired with a tie and button-down shirt, jeans and casual shoes that still look “nice” like leather sneakers on the bottom. Easy, breezy, done.

If there’s a business casual dress code formula, this is one that always equals out on both sides. A casual look that nevertheless lends an air of formality.

nike killshot sneakers
NIKE

Killshot 2 sneaker, $90
shop now
buck mason Japanese Denim Maverick Slim Jean
BUCK MASON
Maverick slim jean, $228
shop now
stylish man wearing a brown patterned sport coat over a brown knit polo sweater and navy pants
J.CREW
Crosby blazer, $378
shop now
wool tie
TIE BAR
Barberis wool tie, 48
shop now

3. Sweater Vest Over a Button-Down

stylish man wearing a black sweater vest over a white dress shirt with grey dress pants, black leather belt, and black shoes
@robo_13

Layering in a trendier item like a sweater vest with an otherwise standard office outfit like grey trousers and a white dress shirt is another great way to do business casual in 2025.

Add coordinating accessories like a leather belt and dress shoes to ground the look firmly in the “office” realm.

black sleeveless sweater vest
SUITSUPPLY

Cotton-silk sleeveless sweater, $199
shop now
white dress shirt
PROPER CLOTH
Stretch non-iron dress shirt, $130
shop now
grey dress pants
BANANA REPUBLIC
Wrinkle-resistant dress pant, $130
shop now
black leather belt
ANDERSON’S
3.5 cm leather belt, $138
shop now

4. Chambray Shirt with Chinos

stylish man sitting on a leather chair in a leather chair wearing a blue sweatshirt around his shoulders, a light blue chambray shirt, tan pants, and brown derby shoes
@stewbryden

If jeans feel too casual for your office, how about a chambray shirt instead?

Worn with chinos and leather lace-ups, you can introduce denim to the workplace while remaining firmly in the “office appropriate” wardrobe camp.

Still not sure? Wear the shirt under a crewneck sweater instead of an Oxford button-down so just the collar is peeking out.

Billy Reid Shoals denim shirt
BILLY REID

Shoals denim shirt, $198
shop now
brown leather derby shoes
TODD SNYDER
City derby shoe, $698
shop now
tan twill pants
MARINE LAYER
5 pocket twill pant, $128
shop now
washed grey crewneck sweatshirt
TRUMBULL
Crewneck sweatshirt, $148
shop now

5. Rumpled Prep

stylish man dressed in a business casual outfit of a crewneck sweater over a blue oxford shirt with tan pants and dark brown suede loafers. a patterned silk scarf is sticking out of the pocket of his patterned topcoat
@chadwickalexanderconner

A crewneck sweater over an OCBD is one of my favorite looks on a guy. Full stop.

Add the suede loafers (again, with white dress socks!), fun silk scarf, and statement topcoat? You’re going to win best-dressed at the office holiday party, for sure.

close-up of a man wearing a blue oxford shirt with the sleeves rolled up to reveal tattoos on his arms
TAYLOR STITCH

Everyday Oxford shirt, $98
shop now
red and pink patterned silk scarf
KATE BLAIRSTONE X TIE BAR
Silk scarf, $59
shop now
brown suede penny loafer
VINNY’S
Yardee moccasin loafers, $350
shop now
stylish man wearing a navy crewneck sweater over a white t-shirt with brown pants and a black leather belt
AYR
‘The Big Softie’ sweater, $245
shop now

6. Trousers with a Sleek Puffer Vest

stylish man sitting on the stoop of a townhouse next to an aime leon dore shopping bag. he is wearing a navy new york yankees baseball cap, sunglasses, tan buttoned quilted vest, cream-colored sweater, tan pants, and green stripe Adidas samba sneakers
@streetandgentle

Now this is how you do a vest at the office.

A sweater and dress pants in interesting fabrics and textures are already a flex (PSA: don’t be afraid to break out of from your navy and grey go-to’s!). And I get it, sometimes you just don’t want to wear another one of your button-ups.

From there, add a sleek pair of sneakers and a quiet luxury vest with buttons that looks straight out of Succession? You’ve got a can’t-miss smart casual office outfit.

close-up of a man wearing a tan crewneck sweater with light denim jeans
MADEWELL

Marl crewneck sweater, $98
shop now
tan quilted vest
MIZZEN + MAIN
Aspen vest, $149 (on sale)
shop now
adidas samba sneakers in white with green stripes
ADIDAS ORIGINALS
Samba OG sneakers, $100
shop now
tan chinos
TODD SNYDER
Sutton trouser, $298
shop now

7. Turtleneck and Trousers

stylish man wearing a navy bomber jacket over a tan turtleneck with dark dress pants, black shoes, and carrying an elegant black leather bag
@efe.efeturi

Who needs a shirt with a collar when you have a debonair as hell turtleneck to wear to work?

In most business casual workplaces, you can also skip the blazer or suit jacket in favor of a variety of light jacket options to pair with your wool trousers, from bombers to Harrington jackets and even jean jackets.

If you’re looking to dip into your spring casual wardrobe purchases to double as officewear, outerwear is a great place to start. When it comes to men’s spring business casual outfits, an interesting top layer sets you apart immediately.

close-up of a man wearing a light brown turtleneck and blue jeans
BOSS

Wool sweater, $348
shop now
men's navy bomber jacket
LANDS’ END
Bomber jacket, $170
shop now
waxed leather briefcase
BARBOUR
Waxed leather briefcase, $250
shop now
wool tweed flat cap
ANDERSON & SHEPPARDD
Herringbone flat cap, $130
shop now

More men’s spring style stories from SG HQ:

The 8 Best Lightweight Men’s Spring Jackets to Shop Now

Long Live the Long-Sleeve Tee

A Month of Spring Outfits for Guys

Taylor Davies

Taylor Davies splits her time between NYC and Sun Valley. She loves writing about menswear, overpriced martinis in dimly lit hotel bars, and cross-country skiing. Not necessarily in that order.

More articles by Taylor Davies

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