Good activewear is built to last. Whether it does depends on how you treat it.
Performance fabrics – the stretch materials, moisture-wicking blends, and spandex-based constructions that make activewear work – require different care than everyday clothing. Wash them the wrong way often enough and they lose their shape, their elasticity, and the performance qualities that made them worth buying in the first place.
This guide covers everything worth knowing: how to wash workout clothes and gym clothes correctly, how to dry and store activewear, and the specific mistakes that shorten the life of even the best pieces. Consider it your activewear care tips reference – the goal isn’t just clean clothes, it’s activewear that performs and looks the same a year from now as it does today.
Why Activewear Needs Different Care
Most activewear is made from synthetic performance fabrics – typically a blend of polyester and spandex. These materials are engineered to stretch, wick moisture, and hold their shape under repeated movement. That engineering is also what makes them sensitive to the things that don’t affect regular cotton clothing.
Heat breaks down elastic fibers. Fabric softener coats synthetic materials and blocks the moisture-wicking channels that keep you dry. Rough washing cycles cause pilling and friction damage to surfaces built for smooth performance. Wringing removes water but distorts the fibers that give a legging its shape.
Understanding why activewear care is different is the foundation for doing it right. Every rule in this guide exists because of how the fabric is built.
Right After Your Workout
What you do in the hour after training matters as much as how you wash. The most common mistake isn’t a wrong detergent or the wrong cycle – it’s leaving sweaty activewear bundled in a gym bag for hours before washing.
Don’t Leave It Wet
Sweat trapped in performance fabric creates the conditions for bacteria and odor to develop. The longer damp activewear sits – scrunched in a bag, in a pile on the floor, or folded in a drawer – the harder it becomes to fully remove that odor, even with a proper wash.
If you can’t wash immediately, air it out. Hang or drape the pieces somewhere with ventilation – over a chair back, on a drying rack, on a door hook. The goal is to let the fabric breathe until it can be washed.
Turn It Inside Out
Turn activewear inside out before it goes in the wash. The inside of the fabric holds the most sweat, oils, and bacteria – turning it out exposes that surface directly to the water and detergent. It also protects the outer surface from friction in the drum, which is where pilling starts.
Make it a habit. Inside out before it goes in the hamper, not just before it goes in the machine.
How to Wash Activewear Correctly
Most activewear laundry mistakes happen in the wash. These are the rules that actually matter.
Always Cold Water
Cold water is non-negotiable when you wash activewear. Hot water breaks down the elastic fibers in spandex blends, causes synthetic fabrics to shrink, and accelerates color fading. A cold cycle on a gentle setting is the right approach every time – not just for delicate pieces, but for all performance fabrics.
This applies to how to wash leggings, how to wash sports bras, hoodies, shorts – every activewear category. Cold, every time.
Gentle Cycle
A standard or heavy wash cycle creates more drum agitation than performance fabrics are built to handle. That friction causes pilling on the surface, stresses seams, and degrades the fabric construction faster than normal wear would. A gentle or delicate cycle reduces that agitation and extends the life of the piece significantly.
Skip the Fabric Softener
Fabric softener is one of the most damaging things you can use on activewear. It works by coating fibers with a conditioning layer – which feels soft but blocks the moisture-wicking channels built into performance fabric. After a few washes with softener, a moisture-wicking legging stops wicking. The fabric still looks the same. The function is gone.
Use a small amount of mild, fragrance-free detergent instead. Less is more – excess detergent residue builds up in synthetic fabrics and contributes to odor over time.
Use a Mesh Laundry Bag
A mesh laundry bag is the simplest upgrade you can make to how you wash workout clothes. It reduces friction between pieces in the drum, prevents straps and drawstrings from tangling, and protects sports bras from losing their shape. Put bras and any piece with strap details in a mesh bag before every wash.
Wash With Similar Fabrics
Wash activewear separately from heavy cottons, denim, or anything with zips, velcro, or rough surfaces. These create friction and surface damage on performance fabrics that adds up quickly. Washing activewear together – or with other lightweight synthetic pieces – keeps that friction minimal.
For new or bright-colored pieces, wash separately for the first wash to prevent color transfer. After that, continue washing with similar colors.
What Ruins Activewear
These are the most common mistakes – and what to do instead of each one.
- The dryer – heat from a tumble dryer is the fastest way to shorten the life of activewear. It degrades elastic fibers, shrinks synthetic fabrics, and destroys the compression that gives leggings their shape. Air dry every time. If you’re short on time, the lowest heat setting for the shortest duration is the only exception.
- Fabric softener – blocks moisture-wicking properties and builds up residue in synthetic fibers. Skip it entirely. Use mild detergent only.
- Hot water – breaks down spandex and elastic, causes shrinkage, accelerates fading. Cold water only.
- Wringing out water – twisting wet activewear to remove water distorts fibers and stretches seams. Gently press water out and lay flat or hang to dry.
- Leaving it damp – sweaty activewear left bunched in a bag develops bacteria and persistent odor that standard washing can’t fully remove. Air out immediately if you can’t wash straight away.
- Soaking for extended periods – a short soak to treat odor is fine. Extended soaking degrades elastane fibers and weakens the stretch that makes performance fabric perform.
How to Dry Activewear
Drying is where most damage happens. The rules here are as important as the washing rules.
Always Air Dry
Lay flat or hang to dry – every time, for every piece. Laying flat is better for leggings and bras because it preserves their shape without putting stress on straps or waistbands. Hanging works well for hoodies and sweatpants where gravity doesn’t distort the silhouette.
If you’re hanging sports bras to dry, hang by the band – never by the straps. Hanging by the straps puts sustained weight on them and causes stretching over time.
Avoid Direct Sunlight
Some sun exposure is fine and can help neutralize odor-causing bacteria. Extended direct sunlight fades color – particularly in darker colorways like black and navy – and degrades fabric over time. Dry in a well-ventilated space out of prolonged direct sun.
Never Use a Hot Dryer
If you must use a dryer, the lowest possible heat setting for the minimum time needed is the only acceptable option. Even low heat accelerates fiber degradation compared to air drying. For premium activewear, the dryer is a last resort, not a default.
Care by Category
The core rules apply across all activewear. These category-specific details make a meaningful difference for each piece type.
How to Wash Leggings
Turn inside out before washing. Cold water, gentle cycle, no fabric softener. Lay flat to air dry – never hang leggings by the waistband, which puts sustained weight on the waistband and distorts its shape over time. For leggings with a Powerhold or structured waistband, laying flat is always the better option.
Wash after every wear. Leggings sit against skin through an entire training session – sweat, oils, and bacteria build up in the fabric even when they don’t smell immediately after.
How to Wash Sports Bras
Always use a mesh laundry bag. Cold water, gentle cycle. Remove any padding before washing and wash pads separately – machine agitation compresses and misshapes removable pads if left inside. Lay flat to dry or hang by the band, never by the straps.
Sports bras are the piece most affected by fabric softener buildup. If yours have lost their shape or support faster than expected, fabric softener residue is the most likely cause.
How to Wash Hoodies and Sweatpants
Cold water, gentle cycle, inside out. Hoodies and sweatpants typically use a softer cotton-blend or fleece-lined fabric rather than technical performance material – but the same rules apply. Heat causes shrinkage and breaks down the soft texture that makes loungewear worth wearing.
Zip up any zips before washing to prevent the zipper pull from catching on the fabric. Turn the hoodie inside out to protect the outer surface from pilling in the drum.
Storing Activewear Correctly
How you store activewear between wears matters more than most people realize. These habits protect your pieces between sessions.
- Never store activewear damp or sweaty – air out before storing, even if it means draping over a chair until dry. Storing damp fabric promotes bacteria growth and persistent odor.
- Fold leggings rather than hanging them – hanging on a hook or hanger puts sustained pressure on the waistband and can distort it over time.
- Store in a cool, dry place out of direct sunlight – prolonged UV exposure fades colors even through a wardrobe door if there’s a light source nearby.
- Rotate your pieces – wearing the same legging or bra every day without rest between wears accelerates fabric fatigue. Building a small rotation gives each piece time to recover its shape between sessions.
How to Get Smell Out of Workout Clothes
Persistent odor in activewear is one of the most common complaints – and almost always the result of either washing too infrequently, using too much detergent, or fabric softener buildup blocking the fabric’s ability to release odor in the wash.
White Vinegar Soak
Add half a cup of white vinegar to a basin of cold water and soak the affected piece for 30 minutes before washing as normal. Vinegar neutralizes odor-causing bacteria without damaging performance fibers. It’s the most effective low-effort solution for stubborn smells.
Baking Soda
Add a small amount of baking soda directly to the wash cycle alongside your detergent. Baking soda helps break down the oils and bacteria that cause persistent odor in synthetic fabrics.
Don’t Use More Detergent
More detergent does not mean cleaner activewear. Excess detergent residue builds up in synthetic fibers, traps bacteria, and is one of the primary causes of persistent odor. Use less than you think you need – a small amount of mild detergent is enough.
When to Replace Your Activewear
Even with perfect care, activewear has a lifespan. Knowing when a piece has reached the end of it – rather than washing it one more time hoping it comes back – saves time and frustration.
- Leggings: replace when the fabric becomes sheer under stretch, the waistband no longer holds its position during movement, or the compression feel is noticeably different from when new.
- Sports bras: replace when the band no longer sits firmly, the straps have lost elasticity, or the bra moves during the workout in ways it didn’t before.
- Hoodies and sweatpants: replace when pilling is significant, the fabric has thinned, or the fit has distorted beyond recovery.
The signal in all three cases is function, not appearance. A piece can look fine and no longer perform. When it stops doing what it was built to do, it’s time to replace it.
Explore the full ACTA activewear collection when you’re ready to rebuild.
Caring for ACTA Pieces
Every ACTA piece is built from premium stretch fabrics – primarily polyester-spandex blends engineered for performance and longevity. The care instructions on each piece reflect the same principles in this guide: machine wash cold, lay flat to air dry, avoid fabric softener, and wash bright colors with similar colors.
ACTA’s Core Collection is designed to be worn on repeat, week after week. Knowing how to make activewear last longer is what makes that possible. Treat the fabric the way it’s built to be treated and it will hold its shape, its color, and its performance for significantly longer than the average activewear piece.
If you’re building or rebuilding your activewear rotation, start with the ACTA Core Collection – the permanent foundation pieces designed for exactly this kind of long-term wear.
Questions Worth Asking Before You Wash
These are the most common care questions – answered directly.
How do you care for activewear to make it last?
Wash cold on a gentle cycle, turn inside out before washing, skip fabric softener, and air dry every time. The most damaging habits – hot water, the dryer, and fabric softener – are all avoidable. Get those three right and most activewear will last significantly longer than the average piece.
How do you wash leggings without ruining them?
Turn inside out, cold water, gentle cycle, no fabric softener. Lay flat to air dry – never hang by the waistband or put in a hot dryer. Wash after every wear.
How do you wash sports bras correctly?
Use a mesh laundry bag to protect straps and shape. Remove any padding before washing. Cold water, gentle cycle, no fabric softener. Lay flat or hang by the band to air dry – never by the straps. Sports bras are the most care-sensitive piece in an activewear wardrobe because of their strap construction and padding – the mesh bag is non-negotiable.
Can you put activewear in the dryer?
Technically yes, but it’s the single fastest way to shorten the life of performance fabric. Heat breaks down elastic fibers, degrades compression, and causes synthetic fabrics to shrink. Air drying is always the better option. If time is a constraint, the lowest heat setting for the minimum duration needed is the only acceptable use of the dryer for activewear.
Why does activewear still smell after washing?
Persistent odor after washing is almost always caused by one of three things: fabric softener buildup blocking the fabric’s ability to release bacteria in the wash, excess detergent residue trapping odor in synthetic fibers, or the piece not being washed frequently enough. Try a white vinegar soak before your next wash, reduce your detergent amount, and eliminate fabric softener entirely.
Can you use fabric softener on activewear?
No. Fabric softener coats synthetic fibers with a conditioning layer that blocks the moisture-wicking properties built into performance fabric. After repeated use, activewear washed with softener loses its ability to manage sweat effectively. Use a small amount of mild, fragrance-free detergent instead.
How do you get sweat smell out of workout clothes?
Soak in cold water with half a cup of white vinegar for 30 minutes before washing as normal. Alternatively, add a small amount of baking soda to the wash cycle. Both neutralize odor-causing bacteria without damaging performance fabric. Avoid using more detergent – excess residue contributes to odor rather than reducing it.
How often should you wash gym clothes?
After every wear for anything worn against skin – leggings, sports bras, shorts, and tops. Hoodies and sweatpants worn as outer layers can go two to three wears between washes, but should be aired out between uses.
How should you store activewear between wears?
Air out before storing – never put damp or sweaty activewear directly into a drawer. Fold leggings rather than hanging them to protect the waistband. Store away from prolonged direct sunlight and rotate pieces so each one has time to recover its shape between wears.
Premium activewear is worth the investment. The way you care for it determines how long that investment holds.