How to Wash Leggings Without Losing Stretch or Colour

Quick answer

Wash leggings inside out in cold water on a gentle cycle with a small amount of mild liquid detergent, then air dry them flat or hanging away from direct heat and sunlight. Skip fabric softener, hot water, and the dryer—those are the fastest ways to break down stretch fibres, fade colour, and cause pilling.

Why leggings need different laundry rules

Leggings are usually made from stretch fabrics that rely on elastic fibres to snap back into shape. Heat, agitation, and harsh chemicals break those fibres down over time, which is why leggings that once felt supportive start to sag, bag, or pill. Colour loss is a separate problem: dye molecules are also sensitive to heat and to friction against other fabrics in the wash.

The good news is that the fix is mostly about what you leave out—no hot water, no dryer, no fabric softener, no heavy detergent. Once you get the routine right, it takes about the same effort as a normal wash.

What you need before you start

You do not need special equipment. A mesh laundry bag, a mild liquid detergent, and a drying rack cover almost everything. If your leggings have a lightweight, quick-dry finish—like the Airy Fit fabric used in andar Australia's Airy Fit Wide Pants—treat them gently from the first wash, because that smooth surface is what keeps them feeling airy rather than fuzzy.

Check the care label on each pair before washing. If a label gives a specific temperature or drying instruction, follow it over any general advice. When a label does not specify a drying method, air drying is the safest default.

Sorting and preparing your leggings

Turn every pair inside out before it goes near the machine. This protects the outer surface from friction, which is the main cause of pilling and dulled colour. Close any zips or hooks on nearby items so they cannot snag the fabric.

Wash leggings with similar lightweight items rather than heavy towels or jeans. Towels are abrasive and hold lint that can transfer onto stretch fabric, while denim adds weight and friction. A separate small load for activewear is worth the extra cycle.

Choosing the right detergent

Use a mild liquid detergent and measure it—more soap does not mean cleaner leggings. Powder detergents can leave residue in stretch fabric, and fabric softener coats the fibres, which reduces wicking and can trap odour. If your leggings are marked quick-dry, softener works directly against that property.

For sweat-prone leggings, a small amount of detergent plus a cold wash is usually enough. If you want extra freshness, look for a detergent designed for activewear rather than adding softener or bleach.

Drying without heat damage

Air drying is the single biggest thing you can do to make leggings last longer. Lay them flat on a rack or hang them in the shade; direct sun can fade darker colours over time, and a hot dryer can shrink fabric and weaken elastic fibres.

If you are short on space, hang leggings by the waistband rather than stretching them over a line, which can leave marks. Avoid drying them on a radiator or in front of a heater for the same reason you avoid the dryer.

Step-by-step: how to wash leggings

1. 1. Read the care label and turn leggings inside out: Check the label for any temperature or drying instruction, then turn each pair inside out and fasten zips or hooks on anything washing with them. Checkpoint: if the label says dry clean only, stop here and follow that instead.
2. 2. Sort into a small, similar-weight load: Wash leggings with other lightweight activewear rather than towels, denim, or items with exposed zips and velcro. Common mistake: overloading the machine, which increases friction and pilling.
3. 3. Use cold water and a gentle cycle: Select a cold, delicate or gentle cycle and add a small amount of mild liquid detergent. Skip fabric softener and bleach entirely. Checkpoint: if you can feel heat in the water, it is too warm for stretch fabric.
4. 4. Skip the spin cycle or keep it low: A high-speed spin twists and stretches damp leggings. Use a low spin setting, or press water out gently by hand instead. Common mistake: wringing leggings out by twisting, which distorts the shape.
5. 5. Air dry flat or hang in the shade: Lay leggings flat on a drying rack or hang them by the waistband, away from direct sun, radiators, and heaters. Checkpoint: if the fabric feels stiff when dry, you likely used too much detergent—rinse again next wash.
6. 6. Store folded, not stretched: Once fully dry, fold leggings and store them flat. Hanging them by one leg for long periods can leave the fabric stretched out of shape. Next step: rotate between pairs so each one gets a rest between wears, which helps elastic recover.

Product care notes

• Airy Fit Wide Pants: The Airy Fit Wide Pants from andar Australia are made with a lightweight, airy construction and a quick-dry, resilient fabric, and come in White Musk and Deep Grey in sizes XS to XL with a choice of Short or Long length. Quick-dry, resilient fabric responds well to cold washing and air drying, and the lighter White Musk colour benefits most from shade drying to slow fading.
• All-Day Fit Bra (Built-In Pads): The All-Day Fit Bra from andar Australia is a wire-free everyday bra with built-in pads, available in Haze Blue and Pink Beige with Hook & Eye or Pullover closure options, and is described as quick-dry and easy-care. If you wash bras with leggings, use the same cold, gentle cycle and air dry them; the Hook & Eye closure should be fastened before washing so it cannot snag stretch fabric.