How to Store Knitwear in Humidity: A Monsoon Guide

Store knitwear folded, never hung, in a breathable cotton bag rather than plastic, with silica gel to control moisture and neem or cedar to deter insects. In Indian humidity the enemy is not moths so much as mildew — and the plastic covers most people reach for make it considerably worse.

Most storage advice online is written for European wardrobes, where the problem is dry cold and clothes moths. In India, and especially through monsoon, the dominant threat is moisture. Relative humidity above roughly 60% is enough for mould to establish on natural fibres, and much of coastal and northern India sits well above that for months.

Fold, never hang

This is the rule that matters most, and it applies year-round rather than only in storage.

A hanger concentrates the entire weight of a garment on two narrow points at the shoulders. Woven fabric resists this because the threads cross at right angles and hold. Knitted fabric is loops, which stretch by design — so over weeks the shoulders elongate and form the small pointed bumps sometimes called hanger horns. They do not come out.

Fold knitwear and stack it, heaviest at the bottom. If you are short on shelf space, folded stacks in a drawer work perfectly well.

How to fold a knit properly: lay it face down, fold both sleeves straight back along the body, fold the sides in to make a rectangle, then fold once across the middle. Folding at the middle rather than in thirds puts the crease where it will not show across the chest.

Clean before storing — always

Put anything away dirty and you are storing the problem with the garment.

Body oils, sweat salts and food traces are what actually attract insects. Clothes moth larvae are drawn to soiled fibre far more than clean fibre, and in humid conditions residual moisture in a dirty garment is exactly what mould needs to start.

Wash or air everything before it goes into storage, and make absolutely certain it is bone dry. A knit that feels almost dry still holds moisture inside the loop structure. Give it an extra day flat in moving air before folding it away.

Close up of knitting yarn showing the loop structure that traps moisture — The loop structure that makes a knit breathable also holds moisture. That is why a knit needs longer to dry than it feels like it does.

Yarn and knitted swatch showing fine gauge cotton knit fabric — The loop structure that makes a knit breathable also holds moisture. That is why a knit needs longer to dry than it feels like it does.

Breathable storage, not plastic

The instinct to seal knitwear in a plastic cover or zip bag is understandable and wrong.

Plastic traps whatever moisture is already in the fabric and in the air sealed alongside it. In a humid climate that becomes a small enclosed environment at high humidity, held against natural fibre, for months. That is the recipe for mildew, musty smell and permanent staining. Dry-cleaner bags are the worst offender, because they are designed only to carry a garment home.

Use instead:

Cotton or muslin storage bags. They keep dust off while letting air move.
An old pillowcase. Works exactly as well and costs nothing.
Open shelving, if the space is dust-free and gets airflow.
Cardboard or wooden boxes with the lid left slightly ajar, rather than sealed containers.

Controlling moisture

Method	How it works	Notes
Silica gel sachets	Absorb moisture from the surrounding air.	Cheap and effective. Replace or oven-dry every few months. Keep away from children.
Charcoal	Absorbs both moisture and odour.	Wrap in cloth so it cannot mark the fabric.
Rice in muslin	Basic desiccant.	Works in a pinch. Less effective than silica and may attract insects.
Airing the wardrobe	Moves stagnant humid air out.	Open the doors for a few hours on a dry day, once a month.
Dehumidifier	Lowers room humidity directly.	The most effective option if you already own one.

Insects, without the naphthalene

Moth larvae eat protein fibres — wool, silk, cashmere. Cotton is cellulose rather than protein, so it is not the primary target, though larvae will chew through it to reach something better, and silverfish feed on cellulose directly. Synthetic fibres are not a food source at all, which is one reason a cotton-blend knit is less vulnerable in storage than pure wool.

Naphthalene balls work, but they are a known respiratory irritant, they are banned or restricted in several countries, and the smell permeates fabric and is very difficult to remove. There are better options:

Neem leaves, dried, in a muslin pouch. The traditional Indian approach and genuinely effective.
Cedar blocks or shavings. Sand them lightly every few months to refresh the oils.
Dried lavender in a cloth pouch, which deters insects and leaves a better smell.
Cleanliness, which does more than any repellent. Insects go where the food is.

Keep any of these near the fabric but not touching it directly — oils can stain.

A monsoon routine

Before the rains: wash everything going into storage, dry thoroughly, fold, add fresh silica.
Monthly: open the wardrobe on a dry day and let air circulate for a few hours.
Mid-season: unfold and refold each piece. This moves the crease and lets trapped air escape.
Check the silica: most indicating sachets change colour when saturated. Replace or dry them out.
After the rains: air everything before wearing again.

Ten minutes a month, and it prevents the problem that actually ruins stored knitwear in this climate.

Our knits are 100% cotton or GRS certified 60% recycled cotton, 40% recycled acrylic. Both are cotton-majority, so the moisture rules above apply in full — store them bone dry, folded and in something breathable.

Frequently asked questions

Should you hang or fold knitwear?

Always fold. A hanger concentrates the garment's weight on two narrow points at the shoulders, and because knitted fabric is made of loops designed to stretch, the shoulders elongate permanently and form pointed bumps. Folding distributes the weight evenly.

How do you store knitwear in humid weather?

Fold it, store it in a breathable cotton bag rather than plastic, and add silica gel sachets to absorb moisture. Make sure the garment is completely dry before storing, and air the wardrobe for a few hours once a month on a dry day.

Can you store clothes in plastic bags?

It is not advisable in a humid climate. Plastic seals moisture in alongside the fabric, creating conditions where mildew and musty odours develop on natural fibres. Use cotton or muslin bags, or an old pillowcase, which keep dust off while allowing air to move.

How do you keep insects away from clothes without naphthalene?

Dried neem leaves in a muslin pouch, cedar blocks, or dried lavender all deter insects without naphthalene's respiratory risks and lingering smell. The most effective measure is storing garments clean, since insects are attracted to body oils and food residue rather than to clean fibre.

Do moths eat cotton?

Clothes moth larvae primarily eat protein fibres such as wool, silk and cashmere. They will chew through cotton to reach those fibres, and cotton soiled with sweat or food can attract them. Silverfish, by contrast, do feed on cellulose and will damage cotton directly.

How do you get a musty smell out of stored clothes?

Air the garment in moving air for a day first, since mild mustiness often clears on its own. If it persists, wash cool with a small amount of white vinegar added to the rinse, then dry flat with good airflow. Address the storage conditions too, or the smell will return.

The short version

Fold, don't hang. Store clean and bone dry. Cotton bags, not plastic. Silica for moisture, neem for insects. Air the wardrobe monthly.

More on washing knitwear, removing pilling, or read how knitwear is made.