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Style Guide

The Definitive Guide to
Business Casual for Men

A Guide to
Business Casual
for Men

Detail of light blue three-piece suit with white shirt and grey knitted silk tie.
Detail of light blue three-piece suit with white shirt and grey knitted silk tie.

Business casual is the modern standard for office attire—professional, polished, and comfortable. It bridges the gap between the formality of a full suit and the ease of more relaxed clothing. At Suitsupply, you’ll find everything you need to master this style, with collections designed for versatility, comfort, and timeless appeal.

What Does Business
Casual Mean Today?

Business casual has evolved from strict suits and ties to a more relaxed, yet still professional, approach. Today, it’s about mixing classic tailoring with comfortable, high-quality fabrics. In most offices and professional settings, you can leave the tie at home and focus on sharp, well-fitted essentials that let you move easily through your day.

At its core, business casual means you look put-together without being overdressed. It’s the ideal choice for most office environments, business lunches, and networking events where you want to make a great impression without wearing a full suit.

Building Your Business Casual Look with Suitsupply

Light blue three-piece suit with white shirt and grey knitted silk tie.

Suitsupply’s collections offer a wide range of options that fit perfectly into the business casual dress code. Here’s how to build your ideal wardrobe

Jackets & Blazers

A well-fitted blazer or unstructured jacket instantly elevates your outfit. Suitsupply’s Business and Linen collections feature blazers in classic and seasonal fabrics, perfect for layering over shirts. In warmer weather, opt for a lightweight linen or unlined jacket for comfort and style. The Mix & Match Collection allows you to choose your ideal jacket and trouser size for a personalized fit.

Light blue three-piece suit with white shirt and grey knitted silk tie.

Shirts

Start with crisp dress shirts in classic shades—white, light blue, or subtle patterns. Suitsupply offers shirts in luxurious Italian cotton, including wrinkle-free options for easy care and all-day sharpness. For warmer months or a more relaxed look, consider a linen shirt from the Linen Collection, which keeps you cool and comfortable.

Light blue three-piece suit with white shirt and grey knitted silk tie.

Trousers

Chinos and dress trousers are the backbone of business casual. Suitsupply’s Business and Perennial collections feature tailored trousers in refined Italian fabrics, available in versatile colors like navy, grey, and beige. For summer, lightweight linen trousers offer breathability without sacrificing style. The Wrinkle-Free Collection also provides trousers that stay crisp throughout your day.

Light blue three-piece suit with white shirt and grey knitted silk tie.

Dressing for the
Season and Occassion

Suitsupply’s seasonal collections make it easy to adapt your business casual wardrobe throughout the year. In summer, reach for lightweight, breathable linen shirts and trousers. For cooler months, layer with knitwear and select blazers in wool or heavier fabrics. The Resort and Summer Highlights collections showcase fresh, vibrant options for warmer days, while the Perennial and Business collections provide year-round staples in classic shades.

Making Business
Casual Work for You

The key to effortless business casual style is fit and fabric. Suitsupply’s tailoring ensures your shirts, trousers, and jackets flatter your frame without restricting movement. Look for stretch fabrics and unstructured jackets for comfort and take advantage of wrinkle-free options to stay sharp from morning to night. Care for your garments by following the recommended care instructions: press shirts, brush trousers, and hang jackets on wide hangers to keep their shape. With the right pieces from Suitsupply, your business casual wardrobe will always look fresh and professional.

Final Thoughts

Light blue three-piece suit with white shirt and grey knitted silk tie.

Business casual is about finding the balance between professionalism and comfort. With Suitsupply’s range of shirts, trousers, blazers, and knits, you can create a wardrobe that’s ready for any workday challenge—no tie required. Focus on fit, fabric, and versatility, and you’ll always look the part, whether you’re in the office or out for a business lunch.