How to Store a Cashmere Sweater

Storage Mistakes Ruin More Cashmere Than Washing Mistakes

Most cashmere damage happens in the drawer or closet, not in the wash basin. Moths eat holes through stored sweaters. Hangers stretch shoulders into permanent bumps. Plastic bags trap moisture and breed mildew. Sunlight bleaches color unevenly.

The good news: proper storage is simple. It costs almost nothing and takes a few minutes per sweater. The rules are the same whether you are putting cashmere away overnight or for an entire off-season.

Rule 1: Always Fold, Never Hang

This is the single most important storage rule for cashmere. Hangers create shoulder bumps that are nearly impossible to remove once the knit has stretched and set in that position.

Cashmere fibers have limited elasticity. Unlike synthetic fabrics that snap back, cashmere stretches under sustained tension and stays stretched. A sweater on a hanger bears its own weight across two narrow shoulder points for hours or days — enough to permanently distort the shape.

How to fold:

1. Lay the sweater face down on a flat surface
2. Fold each sleeve across the back, angled slightly downward
3. Fold the sweater in half lengthwise (bottom hem to shoulder)
4. Store with the fold facing up so the weight does not compress the crease

Rule 2: Give Each Piece Breathing Room

Stacking too many heavy items on top of cashmere compresses the fibers flat. Over time, this compression becomes permanent — the knit loses its loft and the sweater feels thinner and less insulating.

Stack cashmere on top of heavier items, not underneath them. If space is limited, store no more than three cashmere sweaters in a single stack, with the lightest on the bottom.

Daily Storage

For cashmere you are wearing regularly during the season:

• Fold and place in a drawer or on a shelf
• Keep away from direct sunlight — UV exposure fades color unevenly
• Allow airflow — do not pack drawers so tightly that nothing breathes
• Air overnight after wearing before folding and putting away
• Keep separate from rough-textured items (denim, tweed) that can transfer friction and cause pilling

Seasonal Storage (Off-Season)

When storing cashmere for months at a time — spring through fall in most climates — preparation matters.

Step 1: Wash Everything

Never store cashmere without washing it first. Clothes moth larvae are attracted to body oils, food residue, and perspiration salts on the fiber — not the cashmere itself. A clean sweater is dramatically less appealing to moths.

Hand wash each piece using the standard method. Make sure every sweater is completely dry before packing — even slight dampness leads to mildew during months of storage.

Step 2: Choose the Right Container

Container	Good Choice?	Why
Cotton garment bag	Yes	Breathable, protects from dust and light
Canvas storage box	Yes	Breathable, stackable, good for multiple items
Cedar chest or drawer	Yes	Natural moth deterrent built into the container
Acid-free tissue paper wrapping	Yes	Prevents color transfer between stacked items
Sealed plastic bag	No	Traps moisture, creates mildew-friendly environment
Vacuum storage bag	No	Extreme compression damages fiber loft permanently
Cardboard box	Not ideal	Attracts insects, absorbs and releases moisture unevenly

Step 3: Add Moth Deterrents

Place deterrents inside the container with the folded cashmere:

• Cedar blocks or rings: The most effective natural option. The cedarwood oil repels moth larvae. Sand the surface lightly once a year to refresh the scent when it fades.
• Lavender sachets: Dried lavender repels moths and leaves a pleasant scent. Replace every season as the oil dissipates.
• Cedar and lavender together: The combination covers both the repellent scent and any gaps in coverage. This is what most textile conservators recommend.

Avoid mothballs (naphthalene). They work as a moth deterrent but the chemical odor is difficult to remove from cashmere fibers and naphthalene is a health concern in enclosed spaces.

Step 4: Check Periodically

Every 6-8 weeks during the storage period, open the container and air the cashmere for a few hours. Check for any signs of moth damage (small holes, fine webbing, or tiny larvae). Rotate the pieces in the stack so the same items are not always on the bottom.

Climate Considerations

Humid climates: Add silica gel packets to the storage container to absorb excess moisture. Check more frequently for mildew — monthly rather than every 6-8 weeks.

Dry climates: Standard storage works well. The low humidity naturally discourages both moths and mildew.

Fluctuating temperatures: Store in an interior closet or room, not in an attic, garage, or basement where temperature swings are extreme. Temperature changes cause condensation inside containers, which creates moisture problems.

Travel Storage

When packing cashmere for travel:

• Fold using the method above and place in a breathable garment bag or pillowcase
• Pack cashmere on top of other items in your suitcase — never at the bottom
• Stuff the arms and body with tissue paper to prevent deep creases
• Unpack and hang to air (briefly, on a padded hanger) as soon as you arrive, then fold for storage at your destination