Business in summer.
Appear professional without sweating – with the right light fabrics, open construction and well-considered colors.
Book an appointmentBeing professionally dressed in summer without sweating in the office – that is no contradiction. With the right choice of material and cut you stay elegant and businesslike even in the heat. We show what really matters with a summer business suit.
When the classic suit reaches its limits
The typical business suit is made for moderate temperatures: dense worsted wool, full lining, firm interlinings. Exactly what makes it so shapely in autumn becomes a challenge in high summer. From about 25 degrees the heat builds up, the fabric feels heavy – damp patches and creases are hard to avoid.
Yet standards in working life do not drop along with the temperatures. Client appointments and meetings still call for a well-groomed appearance. The good news: with the right decisions your business look stays assured even in the heat.
The right fabrics for hot days
The fabric is the most important factor in comfort. Light natural fibers let air reach the skin and carry moisture outward.
Linen & natural fibers
Linen cools and is wonderfully breathable. Light cotton as well as blends of viscose, modal or silk also wear pleasantly light.
Fresco & High-Twist
Firmly twisted high-twist yarns are woven in an open weave. The weave is air-permeable, barely creases and still looks fresh after long days in the office.
Hopsack & open weaves
The basket-like structure of hopsack looks light and versatile – ideal for jackets that you also wear on their own with chinos.

Construction makes the difference
At least as important as the fabric is the internal construction. A fully lined suit with firm interlinings keeps you warm – in summer the opposite of what you want.
Half-lined or unlined jackets with a soft, light shoulder weigh considerably less and let the heat escape. Thinner interlinings and breathable inner fabrics reinforce this effect. The result is a jacket that feels almost like a shirt – and still keeps the clean line of a business suit.
Colors and combinations for the summer office
Summer is the season of lighter tones – fresh, but businesslike all the same.
- Sand & beige – warm and fresh, ideal for a jacket and for a complete suit.
- Greige – the understated all-rounder that goes with almost any shirt.
- Light blue – brings clear freshness to the business look.
- Olive & mid-gray – muted, modern and versatile to combine.
A well-cut summer jacket does not always have to be worn as a complete suit. Combined with chinos or light trousers in a contrasting color, the result is a flexible mix-and-match look that works from meetings through to the end of the working day – more in demand in 2026 than ever.

Why made-to-measure works well in summer
Off the peg the choice of genuinely summer-ready suits is often limited – and the light fabric rarely fits the figure perfectly. This is exactly where the advantage of made-to-measure lies.
You decide yourself on fabric weight, degree of lining and every detail. From over 5,000 fabrics from Italy and England you choose exactly the cloth that suits your working day and the season – from cool Fresco to casual linen. And because your suit is made exactly to measure, air can circulate without the silhouette suffering. The result: a business look that convinces even in high summer.
Frequently asked questions
Which suit is most comfortable in summer?
Suits made of light, open-woven fabrics such as linen, Fresco or hopsack are particularly airy. Combined with half-lined construction they remain comfortable to wear even in the heat.
Which colors are suitable for the summer office?
Light, fresh tones such as sand, greige, light blue and a muted olive look summery and still stay businesslike.
What does half-lined mean?
With a half-lined jacket only part of the interior is lined. The jacket weighs less and lets heat escape – ideal for warm days.
Can I have a summer suit made to measure?
Yes. At Christian Weilert in Düsseldorf you choose from over 5,000 fabrics and determine weight, lining and cut. Production usually takes 6 to 8 weeks.
Ready for your summer business look?
Book a no-obligation first consultation in our shop in Düsseldorf – together we will find the right fabric, the right construction and your perfect cut.
Book an appointment now
