Why Wool Deserves More Than a Quick Hook

Wool is a remarkable fibre. It breathes, regulates temperature, resists creasing and holds a sharp shoulder line better than almost anything else in the wardrobe. But it is also a protein fibre, which means clothes moths treat it as a larder, and it will happily absorb moisture from the air around it. That combination is why a well-made overcoat can emerge from storage in September looking tired, smelling musty, or peppered with small holes — and why an hour of careful preparation in spring pays you back handsomely in autumn.

The principles are simple: store wool clean, store it dry, store it in the dark, and give it room to breathe. Everything below is just detail.

Clean It Properly Before It Goes Away

Moths are not attracted to wool alone. They are drawn to wool carrying traces of perspiration, food, hair oil or skin cells. A coat that looks spotless may still be an open invitation.

• Empty every pocket — including the ticket pocket, the inside breast pocket, and the lining seams where receipts hide.
• Remove detachable linings, scarves, brooches and pocket squares before anything else.
• Brush the coat with a stiff-bristled clothes brush, working downwards and following the direction of the nap. Give the collar, cuffs, front edges and underarms particular attention, as these collect the most soil.
• Air it outdoors on a dry, breezy day for two or three hours — in the shade, never in direct sun, which fades navy and charcoal surprisingly quickly.

If the coat has been worn regularly through the winter, or carries marks or an oily sheen at the collar, have it dry cleaned. If it has only been worn a handful of times, brushing and airing is usually enough, and kinder to the cloth — repeated dry cleaning strips the natural oils that give wool its handle. Whichever route you take, let the coat hang in a well-ventilated room for a day or two before you bag it, so lingering solvent or dampness can evaporate.

Shape It Before You Store It

A coat left on a thin wire hanger for six months will develop shoulders that never quite recover. Use a broad, sturdy wooden hanger — one wide enough that its ends sit inside the shoulder line rather than poking out. This supports the coat's structure and keeps the chest from collapsing.

• Button the coat so the front panels hang straight and the lapels keep their roll.
• Fasten the belt loosely through its loops, or roll it and tuck it into a pocket rather than letting it hang and stretch.
• Leave the collar standing rather than pressed flat under a bag.

Breathable Bags, and the Truth About Cedar

Plastic is the enemy here. Dry-cleaning film, vacuum bags and sealed covers trap moisture against the wool, which leads to mildew, musty smells and, in bad cases, a bloom of mould along the shoulders. Wool needs air moving around it.

• Use a cotton canvas or breathable garment bag, or a clean cotton pillowcase slipped over the shoulders if you are short of space.
• Leave a little slack — a coat crammed into a tight cover creases and cannot air.
• Add cedar blocks or rings in the wardrobe or inside the bag. Cedar is a deterrent, not a pesticide, so it needs to be reasonably fresh: sand the blocks lightly with fine paper each spring to reopen the grain and release the oils again.
• Lavender bags make a pleasant alternative, but keep them off direct contact with the cloth, and do not over-scent the wardrobe.

Choose the Right Place

The ideal spot is cool, dark, dry and gently ventilated. Aim for a steady relative humidity of around 45 to 55 per cent and a temperature that does not swing about. That rules out most lofts, which can reach 40°C in July and freeze in January, and damp cellars, where wool will drink moisture all summer.

• Keep coats away from radiators, hot water tanks and south-facing windows.
• Hang them with a little space on either side rather than squashed against other garments.
• A spare-room wardrobe, or the back of a bedroom wardrobe away from the door, is often the best spot in a British home.

Check In, and Bring It Back Out Well

Every six to eight weeks, open the wardrobe, shake each coat out, re-hang it and look along the seams for the telltale signs: small holes, a papery moth case, or a fine dust of frass — the gritty residue larvae leave behind. Catching an infestation early is far easier than repairing it.

When autumn comes, do not simply pull the coat on. Air it in the shade for a few hours, brush it down, and hang it in a steamy bathroom for twenty minutes to release storage creases; the gentle humidity does the work without an iron ever touching the cloth. Then let it rest for a day before wearing. Look after wool like this and a good overcoat will outlast half the rest of your wardrobe.