The mac is made from pale-green linen. Made in Ireland, it has been woven into a narrow herringbone pattern of green and off-white. It has all the pleasing natural flecks and slubs of natural linen, and has been washed to soften its handle and relax its appearance.

The mac has deep hip-height slouch pockets (above-left), and a concealed placket lined with cotton (above-right). The back of the mac has a deep pleat (right). This aids freedom of movement, and means the mac widens from the chest down. The pleat has a button-fastened tab.

The back panel of the mac is lined with a lightweight, off-white cotton. The combination of the linen — a naturally light and airy fabric, and ever-cool to touch — and the soft cotton makes the mac a very temperate garment to wear in warm climes.

Here are the pockets — the small chest-height patch pocket (right) and the larger foolscap / A4-sized pocket (below-left) The buttons on the mac (below-right) are made of real corozo nut, made in the Midlands, and are off-white in colour.

The cloth is made by a world-class linen mill, a few miles south of Belfast in Northern Ireland. The mill was built in the late 1800s, and has over most of its life been world-renowned for its exemplary skills in the spinning, weaving, dying, and finishing of luxury linen and flax yarns.

The corozo buttons are made — that’s cut, dyed, and polished — by the last remaining manufacturer of horn and corozo button in England. Based in the West Midlands, the factory has been in the hands of the same family since opening in the mid-1800s: five generations of top-quality button-making know-how.

The garment is made and finished in a small factory in North London, which excels with outerwear, shirts, and trousers. It’s a place of meticulous cutters, unflappable seamsters and seamstresses, and a well cared-for and marvellous-looking contraption for making button-holes.