Cashmere is one of the few fabrics that rewards patience. Buy it well, treat it gently, and a single sweater can outlast a decade of trend cycles, softening with every wear instead of wearing out. Neglect it, and even the finest two-ply knit will pill, stretch, and lose the loft that made it worth the investment in the first place. The good news is that caring for cashmere is not complicated. It simply asks for a different instinct than the one we bring to cotton and synthetics — less washing, less heat, less friction, more patience.
This guide walks through everything from washing and drying to pilling and storage, so the pieces you have already paid a premium for keep earning their place in your wardrobe. If you are still weighing whether cashmere belongs in your closet at all, this numbers-driven breakdown of cashmere sweater value is worth reading first — the cost-per-wear math only works out if the care is right.
Why Cashmere Needs Different Care
Cashmere comes from the soft undercoat of Kashmir goats, and the fibers are both finer and more fragile than sheep's wool. That fineness is what gives cashmere its characteristic softness and warmth without bulk, but it also means the fibers are more prone to felting, stretching, and breaking under heat, agitation, and friction. Every piece of care advice below traces back to that single fact: cashmere fiber is delicate, so the gentlest method is almost always the correct one.
This matters whether you are caring for a chunky sweater, a cashmere shirt, cashmere pants, or a tailored cashmere jacket. The fiber content is the same even when the garment and its construction are not, so the core rules carry across your whole cashmere wardrobe.
How to Wash Cashmere
The most persistent myth about cashmere is that it requires dry cleaning after every wear. In reality, over-cleaning is one of the fastest ways to wear it out, and hand washing at home is usually gentler than commercial dry cleaning chemicals. Cashmere needs washing far less often than you think — airing a sweater out overnight after wear is often enough, with an actual wash reserved for every three to five wears, or whenever there is visible soiling or odor.
When it is time to wash:
- Fill a basin or clean sink with cool or lukewarm water — never hot, which accelerates shrinking and felting.
- Add a small amount of a cashmere-specific or wool-safe detergent. Regular laundry detergent is too harsh and strips the natural lanolin that keeps fibers soft.
- Submerge the garment and gently press the water through it. Never rub, wring, or twist — cashmere fibers are weakest when wet, and agitation is what causes felting and pilling.
- Let it soak for five to ten minutes, then drain the basin and press out the soapy water without twisting.
- Refill with clean, cool water and repeat until the water runs clear of soap.
How to Wash Cashmere in a Washing Machine
Hand washing is the safest route, but it is not the only option if your sweater's label allows machine washing. The key is control: use a front-loading machine, place the garment inside a mesh laundry bag to minimize friction against the drum, and select a wool or hand-wash cycle with cold water and a slow, gentle spin. Skip the fabric softener entirely — cashmere does not need it, and residue can dull the fibers over time. Always do a spot test or check the care label first, because some looser-knit or embellished pieces genuinely are not built to survive a machine cycle, however gentle.
Can You Dry Clean Cashmere?
Yes, dry cleaning is a safe option for cashmere, particularly for structured pieces like a tailored cashmere jacket or coat that holds its shape better without water exposure. The caveat is to choose a cleaner experienced with delicate natural fibers, and to avoid dry cleaning more than a few times a season — the solvents used can gradually dry out the fibers, just as over-washing can. For sweaters and most knitwear, hand washing at home remains the gentler, more cost-effective choice; save dry cleaning for tailored or structured cashmere that is harder to reshape by hand.
How to Dry Cashmere
Drying is where more cashmere pieces are ruined than washing. Heat and gravity are the two enemies here. Never put cashmere in a tumble dryer, and never hang a wet cashmere sweater on a hanger — the weight of the water will stretch it out of shape, often permanently.
Instead:
- After the final rinse, gently press out excess water. Do not wring.
- Lay the garment flat on a clean, dry towel, then roll the towel up with the sweater inside to blot out remaining moisture.
- Unroll and reshape the garment by hand on a second dry towel, gently coaxing it back to its original dimensions — neckline, cuffs, hem.
- Dry flat, away from direct sunlight and radiators, which can both fade color and dry out the fibers unevenly. A dedicated STORAGE MANIAC Sweater Drying Rack, Mesh Clothes ... makes this far easier than improvising with towels on the floor.
- Expect drying to take a day or two depending on thickness and humidity. Patience here protects the shape you worked to preserve.
Caring for Specific Cashmere Pieces
Not every cashmere garment is a pullover, and construction changes the calculus slightly.
How to care for a cashmere shirt: Treat it much like a sweater in terms of washing and drying, but pay attention to buttons and plackets, which can snag in a washing machine even inside a mesh bag — hand washing is the safer route. Iron only on the lowest setting with a pressing cloth between the iron and the fabric, if at all; a light steam is almost always enough to release wrinkles without scorching the fibers.
How to care for cashmere pants: Trousers see more friction than most cashmere pieces, particularly at the inner thigh and seat, so pilling tends to show up there first. Turn them inside out before washing to reduce fiber exposure, and always dry flat rather than hanging, since the weight of wet fabric in the legs will pull the garment out of shape quickly.
How to care for a cashmere jacket: Structured cashmere outerwear usually has interfacing, lining, or padding that is not designed for water immersion, which is why dry cleaning is often the more practical choice here. Between cleanings, a soft-bristled clothing brush used in the direction of the nap will lift surface dust and refresh the pile without a full wash.
If you are building out a cashmere-based work wardrobe, pairing well-cared-for knitwear with the right trousers matters just as much as the care routine itself — this guide to styling white pants is a useful companion piece for rounding out a polished, low-maintenance rotation. For a more complete framework on building a wardrobe where every piece, cashmere included, is working as hard as it can, Her Capsule Edit walks through exactly that.
How to Care for Cashmere Sweaters: Pilling
Pilling is the single most common complaint about cashmere, and it is also the most misunderstood. Pilling happens when short, loose fibers on the surface of the knit rub against something — a bag strap, a coat sleeve, the friction of another cashmere piece in the wash — and tangle into small balls. It is not necessarily a sign of poor quality; even very fine cashmere can pill in high-friction areas like underarms and sleeve cuffs. What differs by quality is how much a piece pills and for how long, since lower-grade cashmere sheds pills more or less indefinitely, while quality cashmere tends to pill less over time as the shorter fibers work themselves out.
The fix is simple and should become a regular habit rather than a one-time rescue:
- Lay the sweater flat on a hard, even surface.
- Use a Cashmere Comb - NAADAM or a fine-toothed sweater stone, working in one direction with light pressure to lift pills without pulling at the knit underneath.
- For stubborn pills, a battery-operated Read This Before You Take a Fabric Shaver to Your ... can be faster and more even than a manual comb, though it requires a lighter hand to avoid thinning the fabric.
- Comb or shave every few wears, before pilling has a chance to accumulate, rather than waiting until the sweater looks visibly worn.
Washing less frequently, turning garments inside out before any wash, and avoiding rough-textured bags or coats layered directly over cashmere will all reduce how quickly pilling develops in the first place.
Storing Cashmere Between Seasons
Correct storage prevents two of cashmere's biggest enemies: moths and stretching. Always wash or air out cashmere thoroughly before long-term storage, since moths are drawn to the oils and residue left by wear, not the fiber itself. Fold rather than hang every cashmere piece, including jackets and cardigans where possible, since hanging — even on a well-padded hanger — can stretch the shoulders and front over months of storage. Store folded pieces in a breathable cotton or linen garment bag rather than sealed plastic, which traps moisture, and tuck in a few cedar blocks or a VONGEM, Cedar Wood Moth Repellent, 50 Pack, Natural ... to deter moths naturally without the chemical smell of mothballs.
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FAQ
How often should I wash a cashmere sweater? Every three to five wears is a reasonable default, or sooner if there is visible soiling. Airing the piece out between wears, rather than tossing it straight into the laundry basket, extends the time between washes considerably.
Can you dry clean cashmere, or is hand washing always better? Both are safe when done correctly. Dry cleaning suits structured, tailored, or heavily lined cashmere like jackets and coats, while hand washing is gentler and more cost-effective for everyday sweaters, shirts, and pants.
Will cashmere always pill eventually? Most cashmere pills somewhat, especially in high-friction areas, and this is not necessarily a sign of poor quality. Regular combing or shaving keeps pilling under control and often decreases over a garment's lifetime as loose fibers work themselves free.
Is it safe to machine wash cashmere? Only if the care label allows it, and only on a cold, gentle wool cycle inside a mesh bag. Hand washing remains the lower-risk option for most pieces.
What is the best way to dry cashmere without stretching it? Lay it flat on a towel, away from direct heat and sunlight, and gently reshape it by hand while damp. Never hang wet cashmere on a hanger.
The Last Word
Cashmere's reputation for being high-maintenance is mostly undeserved — it asks for cool water, gentle handling, and a little patience with drying and storage, not constant professional cleaning. Build a short routine around washing less often, drying flat, combing out pills regularly, and storing pieces folded with cedar rather than hung in plastic, and a well-chosen cashmere piece will keep its shape and softness for years rather than seasons. The investment was never just in the garment itself, but in the habits that keep it looking the way it did the day you brought it home.
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