Your favourite leggings should feel just as sculpting, smooth and confidence-boosting after their fiftieth wear as they did on day one. Knowing how to wash Supplex leggings properly is the difference between preserving that polished, squatproof finish and accidentally dulling the fabric, loosening the fit or flattening the stretch.

Supplex is made for movement. It offers a soft, cotton-like feel with the performance benefits you want from premium activewear: support, durability and a flattering second-skin look. Treat it well and your leggings will be ready for leg day, Pilates, coffee runs and everything in between.

How to wash Supplex leggings the right way

Always start with the care label inside your leggings. Different designs can contain varying blends of Supplex and elastane, plus details such as prints, mesh panels or contour seams that may have specific instructions. When in doubt, follow the garment label first.

For most Supplex leggings, turn them inside out before washing. This simple step protects the outer surface from friction in the machine, helping to keep the colour rich and the finish sleek. It also gives sweat, body oils and deodorant residue better access to the wash water.

Fasten any zips and remove anything from pockets. Then wash your leggings with similar soft activewear pieces. Avoid throwing them in with towels, denim, bras with hooks or anything rough that can rub against the fabric and cause snagging or pilling.

Choose a cool wash, ideally 30°C or below, on a gentle or synthetic cycle. Hot water is not your activewear's best friend. Over time, it can put unnecessary stress on elastic fibres and affect the close, sculpting fit that makes a great pair of leggings feel so good.

Use a small amount of mild detergent

A gentle liquid detergent is usually the best choice for technical fabrics. Use only as much as you need: more detergent does not mean a better wash, and excess product can cling to fibres, leaving leggings feeling less breathable or looking slightly dull.

Skip fabric conditioner entirely. It may make everyday cotton feel soft, but it can coat performance fibres and reduce their ability to manage moisture. Bleach, harsh stain removers and strong biological products are also best avoided unless your care label specifically says otherwise. They can affect colour, stretch and the smooth hand-feel of Supplex.

If you prefer a little extra protection, place your leggings in a mesh laundry bag. It is especially useful for pairs with delicate detailing, lighter colours or a particularly buttery finish. It is not essential for every wash, but it is a smart move when your machine is sharing a load with other clothing.

Can you hand wash Supplex leggings?

Yes. Hand washing is a gentle option for your most-loved pairs, although it is not a requirement after every workout. Fill a clean basin with cool water, add a small amount of mild detergent and lightly move the leggings through the water. Let them soak for a few minutes if needed, then rinse thoroughly until the water runs clear.

Do not scrub the fabric aggressively, twist it or wring it out. Those habits can distort the shape and place pressure on stretch fibres. Instead, press out excess water gently, roll the leggings in a clean towel and then leave them to dry naturally.

Hand washing is particularly useful when you have worn your leggings for a low-impact session, a quick trip out or a day of travelling and they only need a refresh. For a full-on gym workout, a cool machine wash is still perfectly effective when done with care.

How often should you wash them?

If you have trained in them, wash your Supplex leggings after each wear. Sweat, natural oils and bacteria can build up in close-fitting activewear, even when the leggings still look immaculate. Prompt washing helps keep the fabric fresh and avoids lingering odours settling into the fibres.

For light wear, it depends. If you have only worn your leggings for a relaxed coffee run, working from home or a short errand, airing them out may be enough before another wear. Turn them inside out and hang them somewhere fresh and dry, rather than leaving them bundled in a gym bag or laundry pile.

The key is to be honest about the day your leggings have had. A gentle stroll and a sweaty HIIT class are not the same. Washing less often can be kinder to any garment, but waiting too long after intense exercise is not the way to protect premium activewear.

Drying Supplex leggings without damaging the stretch

Air drying is the move. Reshape your leggings while they are damp, smoothing the waistband and legs with your hands, then lay them flat on a drying rack or drape them evenly over an airer. Keep them away from radiators, heated towel rails and strong direct sunlight, all of which can be hard on elastic fibres and colour over time.

Avoid the tumble dryer. High heat can weaken the elastane that gives leggings their body-hugging recovery, which may eventually leave the waistband less supportive or the knees a little looser. Your leggings may dry quickly in a dryer, but that shortcut can cost you the fit you bought them for.

There is no need to iron Supplex leggings. If they have dried with light creases, they will normally relax once worn. Direct heat from an iron can damage synthetic performance fibres, so keep it firmly off the care routine.

What to do about sweat marks, odour and stains

The sooner you deal with a mark, the easier it usually is. For makeup, food or a small spot of mud, rinse the area with cool water and work in a tiny amount of mild detergent using your fingertips. Leave it briefly, rinse, then wash as normal. Avoid rubbing with a brush or using harsh household cleaners.

For persistent odour, do not reach for fabric conditioner to mask it. Instead, make sure you are not overloading the washing machine, use the recommended amount of detergent and allow your leggings to dry fully before folding them away. Damp activewear stored in a drawer is a fast route to that unwanted gym-bag smell.

If residue is the issue, an occasional extra rinse can help. This is especially useful in hard-water areas or if leggings feel less fresh than they should after washing. Keep the treatment gentle and let the fabric do what it was designed to do.

Small habits that keep leggings looking luxe

Care starts before wash day. Change out of sweaty leggings when you can, rather than sitting in them for hours after training. Never leave them crumpled in a sealed gym bag. Separate darker colours from pale pieces, and wash new, deeply coloured leggings on their own for the first wash or two in case of dye transfer.

Be mindful of what your leggings come into contact with, too. Rough gym benches, Velcro, abrasive bags and repeated rubbing against coarse fabrics can create wear over time. That does not mean you need to treat activewear like fragile occasionwear, but a little care keeps the finish looking elevated for longer.

Premium leggings are made to move with you, not to become another high-maintenance item in your wardrobe. A cool wash, gentle detergent and air dry are all it takes to keep that sculpting fit feeling fresh, flattering and ready for your next plans.