Underwear Care

Caring for and washing designer underwear

Underwear Care

Washing, drying and keeping underwear fresh and in shape

OD's Designer Clothing · Knowledge Hubs

Underwear is worn hard and washed often, so a little care keeps the fabric soft, the elastic springy and the fit true. This hub covers washing, drying and storage to get the most life out of every pair.

Washing

Wash Temperature

Warm enough to clean, cool enough to protect elastic.

How it works

A 30 to 40 degree wash cleans effectively while protecting elastane, as hotter washes break down stretch fibres over time.

Why it matters

Cooler washing keeps the waistband and fabric springy and colours bright, extending the life of the pair.

Avoid Fabric Softener

Softener coats fibres and dulls wicking and stretch.

How it works

Fabric softener leaves a residue that coats fibres, reducing breathability and the recovery of stretch fabrics.

Why it matters

Skipping softener keeps performance and wicking underwear working as intended and the elastic responsive.

Separate Colours

Wash darks and whites apart to keep colour true.

How it works

Washing whites and colours separately stops dye transfer that greys whites and muddies bright shades.

Why it matters

It keeps white vests and undershirts crisp and coloured underwear looking new for longer.

Gentle Cycle

A slower spin protects seams and elastic.

How it works

A gentle or synthetics cycle uses lower agitation and spin, putting less stress on seams and waistbands.

Why it matters

It is especially worth it for modal, bamboo and performance pairs, which can be damaged by harsh cycles.

Drying

Air Dry

Line or flat drying protects elastic and fit.

How it works

Air drying avoids the heat of a tumble dryer, which is the main cause of perished elastic and shrinkage.

Why it matters

It keeps waistbands springy and the fit true, and most underwear dries quickly on a line.

Avoid High Heat

High dryer heat perishes elastic and shrinks fibres.

How it works

High tumble-dryer heat degrades elastane and can shrink cotton, slackening the waistband and altering the fit.

Why it matters

If you must tumble dry, a low or cool setting preserves stretch and shape far better than high heat.

Keeping shape

Storage

Folded, dry storage keeps pairs in good order.

How it works

Storing underwear clean, dry and loosely folded avoids crushing elastic and lets fabric breathe.

Why it matters

Good storage keeps pairs fresh and ready and avoids the musty smell of damp or over-packed drawers.

Timely Replacement

Knowing when elastic and fabric are past their best.

How it works

Underwear wears out as elastic slackens, fabric thins and the fit loosens, usually within a year or two of regular wear.

Why it matters

Replacing tired pairs keeps support and comfort where they should be, as no wash restores perished elastic.

Frequently asked questions

What temperature should I wash underwear at?

A 30 to 40 degree wash cleans effectively while protecting the elastane, as hotter washes break down stretch fibres over time. Cooler washing keeps the waistband springy and colours bright.

Can I tumble dry underwear?

You can, but high heat is the main cause of perished elastic and shrinkage. Air drying is best for keeping the waistband springy and the fit true, and if you do tumble dry, use a low or cool setting.

Why should I avoid fabric softener on underwear?

Fabric softener leaves a residue that coats the fibres, reducing breathability and the recovery of stretch fabrics. Skipping it keeps performance and wicking underwear working as intended and the elastic responsive.

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