Knitwear Care Guide

First published: September 28, 2026
Man & Woman wear Rise & Fall crew neck jumpers.
Not sure how to care for your cashmere jumper or lambswool cardigan? This guide covers how to care for your favourite knitwear pieces, including how to wash, store, dry, and handle common mishaps like stains and bobbling.

How Often Should You Wash Knitwear?

We recommend washing knits perhaps every 8-10 wears, or longer if possible!

However, the answer really depends on the material and situation but washing too often can weaken the fibres, changing the garment’s shape or cause piling.

Premium knitwear is made from natural fibres such as cashmere, lambswool, and merino wool and these materials have natural antibacterial properties. They don’t hold onto smells the same way other fabrics do.

If you can get away with just a spot clean rather than a full wash, this will support garment longevity.

So, inbetween wears it's a good idea to air your knits and use breathable base layers to prevent your knitwear from directly touching your skin. Cotton T-shirts and vests are particularly good as they're thin while simultaneously creating extra dimension to your outfits. 

How To Air Out Your Knits

  • Lay your knitwear flat in a well-ventilated place, away from direct heat, for 24 hours.
  • Avoid hanging your knitwear, as it can stretch.
  • Spot clean any stains or marks, such as make around the neckline before airing or storing your knits away. 
  • If odours remain, wash your knit following the wash care provided on the care label and follow our guidance below.
Man wears Rise & Fall's Red Cashmere Crew Neck Jumper.
Woman Wears Camel High Neck Cashmere Jumper.

How To Wash Knitwear

Start With The Right Detergent

For cashmere, merino, lambswool and wool blends, choose a mild detergent specifically labelled as suitable for wool.

Follow the detergent’s dosing instructions. More detergent doesn't mean a better clean, and excess can leave residue. Avoid standard biological detergents and bleach on wool and silk, and skip fabric conditioner.

How To Handwash Your Knitwear

  1. First, empty any pockets and check for loose threads.
  2. Use cool water as specified on the label and add the correct dose of detergent.
  3. Gently move it through the water without scrubbing or stretching.
  4. Soaking time will depend on the specific garment. Cashmere can soak for 15 minutes, but we don’t recommend soaking merino wool for long. Always check the label for specific instructions.
  5. Use clean water at the specified temperature.
  6. Press out the water gently without wringing and support the garment when lifting it out to avoid the weight of the water from stretching the fibres.
  7. Transfer it to a clean towel to dry - learn how to do this correctly by following our simple steps below.

Can You Put Knitwear in The Washing Machine?

  1. Check the label to confirm it’s machine washable. Many are handwash-only.
  2. Use a pill comb to remove any bobbles before closing any zippers or fastening any buttons.
  3. Turn the garment inside out to protect the fibres from pilling.
  4. Place the knitwear in a mesh laundry bag to reduce friction against the drum.
  5. Place in the drum and select a cool, delicate wash, as specified on the care label. This usualy a wool, hand-wash or delicate cycle with cold water (30c or lower).
  6. Pour the correct amount of mild liquid detergent.
  7. Set the spin speed to low.
Woman Pulling Lambswool Jumper Over Her Head.
A 100% cashmere double sided wrap around a woman's shoulders.

How To Dry Knitwear Without Stretching It

Unless the care label permits it, we recommend avoiding a tumble dryer or hanging your knitwear to dry. Hanging a heavy jumper by its shoulders can pull it out of shape, and tumble dryers can cause shrinkage, felting, and bobbling.

Instead, we recommend flat drying:

  • Place the garment on a clean towel and gently roll it up to absorb moisture, without twisting.
  • Unroll it and lay the knit on a fresh, dry towel or a flat drying surface that supports the whole garment.
  • Ease the body, sleeves and edges back into shape while damp. Avoid pulling them longer or wider.
  • Leave it to dry away from radiators and direct sunlight, with air circulating around it.
  • Ensure it has dried completely before folding away.
Beth Ranson Rolls A Cashmere Knit in a Cotton Towel.
Beth Ranson Dries A Cashmere Knit In A Cotton Towel.

How To Store Knitwear and Protect It From Moths

Before storing your knitwear for a long time, make sure it’s clean. After a long summer, no one wants to find their favourite jumper with holes in it. Here are our top steps to prevent moths from attacking your cashmere and other knitwear:

  1. Fold your knitwear rather than hanging it.
  2. Use storage bags for long-term protection but avoid vacuum or air-seal bags as they compress the knitwear, reducing its lofitness.
  3. Keep your wardrobe and drawers clean.
  4. Use cedar or lavender as an extra deterrent.
  5. Air out and rotate your knits.

Despite popular belief, it's not the moths themselves eating your clothes; it's their larvae. Moth larvae can live in your wardrobe for up to 2 years under some conditions, so prevention is key if you want to keep your luxury knitwear in good condition.

Check regularly for holes, loose threads, stains, snags, bobbling, and moth damage and tackle small issues early to help protect your knitwear.

A close up of Rise & Fall's poppy red fine cashmere blouson cardigan worn with cream trousers.
Man wears green Quarter Zip Cashmere Jumper With White T-shirt and Jeans.

How To Remove Pilling From Knitwear

It's worth taking a moment to understand that pilling is a natural part of wearing knitwear, particularly with soft fibres such as cashmere and merino. It's commonly found in ares that see a lot of movement so, under the arms and the sides. 

The simplest way to remove piling is with a specialist knitwear or cashmere comb. 

How To Use A Cashmere Comb

  1. Make sure your knitwear is completely dry and lay it flat.
  2. Gently hold the fabric taut.
  3. Lightly comb the pilled area in one direction using short, smooth strokes. The aim is to lift away loose surface fibres, not thin the knit.
  4. Remove the loosened fibres as you go.
  5. Stop once the surface looks even — over-combing can eventually thin the fabric.

Done occasionally and carefully, combing is a simple way to keep good knitwear looking good for longer. 

Be particularly cautious around finer or more delicate areas.

You don’t need to comb knitwear after every wear and we recommend a specialist comb rather than an electric fabric shaver, which cuts fibres rather than gently lifting away the pills. 

Our Cashmere Comb is the perfect choice. Made from cedar wood with a fine metal mesh designed to lift pilling without pulling or damaging the fibres. Despite the name, it can also be used carefully on other fine knits prone to pilling.

Common Knitwear Mishaps

Here our our main do and don'ts when it comes to your knitwear:

Problem What To Do What To Avoid
A fresh spill Gently blot excess liquid with a clean, absorbent cloth. Follow the care label before further treatment Scrubbing or applying an untested stain remover
A stain Ask a professional cleaner experienced with delicate knitwear and show them the care label Repeatedly rubbing one patch
A snag or pulled loop Carefully loop it back through to the inside of the knit Cutting the loop
A small hole or loose seam Promptly arrange for it to be repaired professionally, before future wear makes it bigger Continuing to wear it, causing the damage area to be stretched or pulled further
A change in shape after washing Gently reshape while damp, without forcing the fabric. Seek specialist advice if it remains distorted We avoid promising that stretching or soaking will restore a shrunken garment
Using the wrong detergent Use a specialised wool or a delicate detergent Don't use standard bio-detergents as they enzymes may break down the natural fibres. Also stay clear from fabric softeners as they can leave a waxy coat that can damage fibres and ruin knitwear over time.

Looking For A Material-specific Care Guide For Your Entire Wardrobe?

And now that you’re up to speed on best practices for expert knitwear care, why not shop our women’s and men’s knitwear collections?

Knitwear Care FAQs


Hand washing isn’t suitable for every knit. Check the care label before putting your jumper in water, especially if you usually have it dry cleaned. For a stubborn stain on a piece that permits dry cleaning, ask an experienced cleaner for advice.

Check that each piece can be washed at the same temperature, with the same detergent and washing method. Keep colours that might run apart, and wash any garment labelled “wash separately” on its own.

A cotton setting may be too harsh for a jumper that also contains merino wool or silk. Even if cotton makes up most of the fabric, use the washing instructions on the garment’s labe

Air your knits between wears, and check for marks before storing them. When they need washing, follow the care label, support their weight while wet and gently ease them back into shape. Make sure they’re completely dry before storing, and remove any loose threads or bobbles as you spot them.

Lay your cashmere flat and gently pass a special cashmere comb over the areas with bobbles, using light, short strokes. Avoid pulling at the fabric or picking the bobbles off by hand, as this can damage the fibres.

About the Author

Vicky Golding

Ecomm Content Strategist

Vicky Golding

Vicky is a seasoned content strategist with deep expertise in e-commerce. With years of experience working with premium brands, she brings a refined understanding of luxury apparel and bedding -championing quality, comfort and timeless design. Driven by a passion for connecting people with products that elevate daily life, she creates content that inspires, informs and builds lasting customer loyalty with the brands she works with.

About the Reviewer

Beth Ranson

Head of Product Development, Rise & Fall

Beth Ranson

Beth Ranson is Head of Product Development at Rise & Fall, with a background spanning knitwear design, textile research, writing and education. A Royal College of Art graduate, Beth has also worked extensively across knitted textiles, yarns and manufacturing processes, with a particular interest in responsible production and the relationship between fibre construction and finished garments. She now contributes her technical knowledge to Rise & Fall’s guides, offering practical insight into knitwear, materials, craftsmanship and how well-made pieces are designed to last. In her spare time she loves getting lost in a book.

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