
It can be hard to wear a tailored jacket in the warmer seasons. Even if it’s made from a loosely woven linen or lightweight tropical wool, a tailored jacket typically has multiple layers inside to give it structure – canvas, padding, haircloth, etc. The trick, of course, is to find something as softly tailored and lightly lined as possible. With fewer layers between you and that (hopefully) breathable shell, your body will dissipate heat better and you’ll in turn feel cooler.
None of that is six o’clock news to anyone who’s familiar with tailored clothing, but few people think about the different ways to make a jacket breathable. For one, Ermazine allows for better ventilation than Bemberg (which in turn allows for better ventilation than silk). The first is a lightweight viscose; the second a soft rayon. Most tailors rely on Bemberg because it’s durable, inexpensive, and readily available, but Ermazine can sometimes be had upon request.
Then there are the different ways to construct an unlined jacket – some of which are better suited to certain materials than others. Below are some jackets from No Man Walks Alone, which nicely illustrate these techniques.