A Guide to Caring for Fine Knitwear

There is a particular pleasure in a jumper that has been worn for a decade and still looks the better for it. The colour has settled, the surface has softened, and the shape has learned the wearer rather than fighting them. This does not happen by accident. Fine knitwear is among the most rewarding things in a wardrobe and among the most quietly demanding, and the gap between a cashmere crewneck that lasts twenty years and one that pills into sadness by its second winter is almost entirely a matter of care.

None of this care is difficult. It asks for a little time and a willingness to ignore the more alarming instructions printed on the label. What follows is the method we return to, learned the slow way through ruined sleeves and shrunken shoulders, and refined until it became second nature.

Understand what you are handling

Before you wash anything, it helps to know what a fine knit actually is. Cashmere, merino, lambswool and the rarer fibres are all protein filaments, closer in character to your own hair than to a cotton shirt. They are elastic, they respond to warmth and moisture, and they felt — that is, they tangle irreversibly — when heat, water and agitation arrive together. Almost every knitwear disaster is some version of those three forces meeting at once. Remove any one of them and the fibre stays calm. Those rarer fibres reward the gentlest handling of all, and our piece on the guanashina scarf considers one of the most precious.

This is also why the softest fibres are the most vulnerable. The very fineness that makes good cashmere feel like warm air makes each filament easy to abrade. If you are still building a collection, it is worth reading our notes on how to buy cashmere and how to keep it before you spend, because the quality of the yarn sets the ceiling on how well it will age.

Wash less, and wash gently

The first rule is to wash knitwear far less often than instinct suggests. Wool is naturally antibacterial and shrugs off odour; most jumpers need airing overnight rather than washing. Hang a worn piece somewhere with moving air, and by morning it will have recovered. Reserve washing for genuine marks and the end of a season. The same gentle approach serves the finest woven pieces too, as our piece on the quiet luxury of the pashmina shawl suggests.

When you do wash, do it by hand in a basin of cool water — not cold enough to shock, not warm enough to felt, roughly the temperature of a tepid bath. Use a capful of a dedicated wool detergent or a gentle baby shampoo. Turn the garment inside out, submerge it, and press the water through gently. Do not wring, do not rub, do not swirl. Leave it to soak for ten minutes, then rinse in water of the same temperature until it runs clear. The single most common mistake is a change in temperature between wash and rinse, which is enough to shrink a shoulder by a full size.

The label will tell you to dry clean. Ignore it for all but structured or heavily embellished pieces. The solvents are harsh, they strip the natural oils from the fibre, and hand washing is gentler and cheaper.

Dry flat, always

Never hang wet knitwear. Waterlogged wool is heavy, and a hanger will stretch the shoulders into little peaks that no amount of steaming will fully remove. Instead, lift the garment out supporting its full weight, lay it on a clean towel, roll the towel like a Swiss roll and press to squeeze out water. Then reshape the jumper on a fresh dry towel, patting it back to its proper dimensions, and leave it flat away from direct sun and radiators. In a Singapore flat, a spot under a ceiling fan is ideal; the moving air does the work without heat.

Deal with pills honestly

Pilling is not a sign of poor quality — even the finest cashmere pills where it rubs, at the cuffs, the underarms and where a bag strap sits. What matters is dealing with it well. Never pull a pill off by hand, which drags a length of fibre with it. Lay the garment flat and use a purpose-made knitwear comb, drawing it gently in one direction, or a good battery de-piller held light against the surface. Done a few times a season, this keeps a jumper looking taut and new. The same principle of maintenance rather than replacement runs through everything we value; it is why we care about leather goods that age beautifully and why the best things reward attention.

Store for the long game

Knitwear is stored folded, never hung, or the shoulders will droop over months into an unrecoverable slump. Fold along the natural lines, arms tucked back, and stack loosely so air can move. Cedar blocks or lavender sachets deter moths, which are the true enemy of a good wardrobe and are drawn to the very fibres you love most — clean wool first, since moths follow traces of skin and food. In a humid climate, the greater risk is mildew, so keep cupboards ventilated and consider a small dehumidifying sachet. A well-kept cable knit will outlast fashion entirely, as we argue in our piece on the enduring style of the cable knit.

A short seasonal ritual

At the end of the cooler months, wash everything once before it goes away, because invisible traces of body oil and food will oxidise into permanent stains and attract moths over a long storage. Dry fully — any residual damp invites mildew — fold with acid-free tissue for the pieces you love most, and store in a breathable cotton bag rather than plastic, which traps moisture. Come the next season, an airing and a light steam will bring everything back.

The quiet reward

The point of all this is not fussiness for its own sake. It is that a small, consistent effort turns clothing into something closer to an heirloom. A jumper cared for this way develops the same earned quality we look for across a wardrobe, the softness and settled colour that no amount of money can buy new. If you enjoy this kind of considered maintenance, the rest of our style and watches writing runs on the same conviction: that the best things are not the newest but the best kept. Learn the method once, let it become habit, and your finest knitwear will quietly outlast almost everything else you own — worn softer and better with every passing winter.