The fastest way to ruin good activewear is the dryer. The second fastest is fabric softener. If you want girls activewear to last past the next growth spurt, the care routine matters as much as the fabric quality. Here is exactly what to do, and why each step makes a difference.
Cold Wash, Inside Out, Every Time
Hot water breaks down elastane. That is the fibre giving performance stretch its 4-way movement and its ability to bounce back after a session. Once elastane degrades, the fabric loses recovery and leggings sag at the knees after just a few washes. Cold wash at 30 degrees or lower preserves that stretch for far longer.
Turning garments inside out before washing protects the outer surface from abrasion against other clothes. It also means the inner layer, which carries most of the sweat and body oils, gets the most direct contact with water and detergent. Both benefits in one habit.
Use a gentle or delicate cycle. High spin speeds stress the fabric and seams repeatedly over dozens of washes. That adds up fast when a dancer is training four or five days a week.
What to Avoid in the Wash
A few common laundry habits accelerate wear in activewear fabrics specifically.
- Fabric softener coats synthetic fibres and blocks moisture-wicking function. Skip it entirely for activewear.
- Bleach and optical brighteners weaken elastane and fade colour quickly, even at low concentrations.
- Washing activewear with heavy items like jeans or towels causes friction that pills the surface and stresses seams.
- Leaving sweaty activewear balled up in a bag for hours before washing sets odour into the fabric. Rinse or hang loosely until wash day if needed.
- Soaking for extended periods can stress elastic threads. A quick pre-rinse is fine, but long soaks are not necessary with a proper wash cycle.
A sports-specific detergent or a small amount of plain, low-enzyme detergent is the better choice. These are formulated to break down sweat and oils without degrading synthetic fibres.
If you are choosing activewear with sustainability in mind, it is also worth reading about what to actually look for in eco-friendly girls activewear before you buy, since some fabrics do require slightly different care to maintain their properties.
Drying: Air Only
The dryer is the single biggest threat to activewear longevity. Heat breaks down elastane at a structural level. One or two dryer cycles may not show visible damage, but the recovery and shape retention reduce with each cycle. After ten or fifteen cycles, the fabric simply will not bounce back the way it should.
Lay garments flat to dry or hang them in a shaded spot with good airflow. Direct sunlight for extended periods can fade colour, particularly in brighter or darker shades. A shaded airer indoors or under a verandah is ideal.
Flat drying also helps leggings keep their shape. Hanging leggings from the waistband while wet can stretch the waistband over time, which matters for fitted styles with fold-over or compression waistbands.
Washing Frequency and Rotation
Activewear worn for dance or sport should be washed after every session. Sweat and body oils left in fabric break down the fibres and set odour, even if the garment does not smell strongly straight away.
The practical solution is rotation. Having two or three sets in regular use means no single garment is washed more than necessary, and each piece gets time to rest and recover its shape between wears. This is especially relevant during a growth spurt, when the same few pieces tend to be worn on repeat until sizing catches up.
If you are navigating sizing during a fast growth phase, our guide on sizing girls activewear when she is growing quickly covers how to choose pieces that give a little extra room without losing fit and function.
When to Replace Rather Than Repair
Good care extends the life of activewear significantly. But there are signs that a piece has reached the end of its useful life, regardless of care.
- Leggings that bag at the knees and do not recover after washing.
- Waistbands that roll down or no longer hold position during movement.
- Fabric that has become sheer or threadbare at the seat or inner thigh.
- Persistent odour that does not clear after washing.
These are signs the elastane has degraded or the fabric has worn through. Continuing to use gear in this condition affects comfort and confidence during class, which is reason enough to replace it.
For help choosing the right next piece, the article on how to choose girls activewear for dance, gym and sports is a practical starting point covering fabric, fit, and activity type.
Browse the full girls activewear range to find well-made pieces built for regular washing and hard wear across dance, gym, and sport.
