How to wash activewear the right way: cold water, mild detergent, no softener, air dry. Keep leggings and sports bras stretchy and odour-free for longer.
To wash activewear, turn each piece inside out, use cold water with a small amount of mild detergent, and always air dry. Skip the fabric softener and the tumble dryer. Activewear is made from stretchy synthetics like polyester, nylon and elastane. Heat and product residue are what break those fibres down. Get the routine right and your leggings, sports bras and gym tops hold their shape, stretch and freshness for much longer. Below is the full method, how often to wash, how to hand wash, and the mistakes to avoid.
Start the moment you take the kit off. Do not leave damp, sweaty pieces balled up in a gym bag. That is how smells set in. Here is the routine that works for almost all <a href="https://sliuet.com/category/activewear">activewear</a>:
That is the whole method. Everything else on this page is detail for special cases, such as heavy odour or a delicate sports bra.

Wash activewear after every sweaty session. Sweat, body oil and skin cells feed the bacteria that cause odour, and they build up fast in warm weather. Leggings, sports bras and gym tops that you have sweated in should not be re-worn without washing.
There is one exception. If you wore a piece for light, low-sweat activity, such as gentle stretching or a short errand, you can usually wear it once more before washing. Give it a sniff and a quick air out first. When in doubt, wash it. Letting sweat sit in the fabric is the fastest way to lock in a permanent smell.
Hand washing is gentle and gives you the most control. It is also handy when the power is out and the machine is not an option.
Fill a clean basin with cold or lukewarm water. Add a small squeeze of mild detergent and swirl it in. Turn the garments inside out and submerge them. Press and swish gently for a minute or two, then leave them to soak for around 15 minutes. Rinse in clean cold water until no suds remain.
Do not wring or twist the fabric. Wringing stretches the fibres out of shape. Instead, press the water out, or roll the piece in a clean towel and squeeze. This is the same careful approach we recommend for a <a href="https://sliuet.com/blog/how-to-wash-a-waist-trainer">waist trainer</a> and for <a href="https://sliuet.com/blog/lace-care-101-wash-and-store-delicate-lingerie">delicate lace lingerie</a>.
The machine is fine for most activewear if you set it up with care.
Hot water relaxes elastane and fades colour. Always choose cold water and the gentle or delicate cycle. A shorter spin is kinder to the stretch.
Put sports bras and anything with hooks or straps in a mesh laundry bag. The bag stops straps tangling and pads holding their shape. A structured piece like the <a href="https://sliuet.com/product/front-zip-sports-bra">front-zip sports bra</a> lasts longer this way. Fasten the zip or clasp first.
More detergent does not mean cleaner clothes. Too much leaves a residue that traps odour inside the fibres. Use a small amount of a mild liquid detergent, and wash activewear with other light, similar items rather than heavy jeans or towels.
Never tumble dry activewear. The heat is the single biggest thing that ruins stretchy fabric. It melts and weakens elastane, which is what leaves leggings baggy and sports bras loose.
Air dry every piece instead. Lay items flat or hang them on a line in a shaded, airy spot. Reshape them with your hands while damp so they dry in the right form. Once fully dry, fold pieces or hang them loosely. Do not store anything even slightly damp, as that invites mildew and smell.
Pakistan's heat and humidity work against your gym kit. You sweat more, and damp fabric left in a closed bag turns sour quickly. Rinse or wash pieces the same day you train.
Drying is easy in our dry heat, but keep clothes out of harsh direct sun. Strong sun fades colour and can weaken elastane over time. A shaded balcony or an airy indoor line is ideal. During humid, monsoon spells, make sure pieces are bone dry before you fold them away. If you shop for new sets, our <a href="https://sliuet.com/blog/activewear-size-chart-how-to-measure">activewear size chart</a> helps you get the fit right the first time.
A few common habits shorten the life of good gym clothes:
Avoid these five and your activewear stays fresh and springy far longer.
After every sweaty workout. Sweat and body oil feed odour-causing bacteria, which build up quickly in warm weather. Only very light, low-sweat wear can be worn once more before washing.
Yes, and it is the gentlest option. Soak it in cold water with a little mild detergent for about 15 minutes, rinse well, and press out the water without wringing.
Usually too much detergent or fabric softener. Both leave a residue that traps bacteria in the fibres. Use less mild detergent, skip softener, and wash in cold water.
No. Dryer heat melts and weakens the elastane that gives activewear its stretch, leaving pieces baggy. Always air dry in the shade instead.
Washing activewear well is mostly about what you avoid: no hot water, no fabric softener, and no tumble dryer. Turn pieces inside out, use a little mild detergent in cold water, and air dry them in the shade. That simple routine protects the stretch, the shape and the freshness of every piece you own.
Ready to refresh your kit? Browse the SLIUET activewear collection and give your new pieces the care routine above from day one.