Women's Activewear FAQ: Sizing, Support, and Care Questions Answered

Quick answer

Start with your usual size, then adjust for support and coverage: size up in leggings if you are between sizes or prefer a relaxed waistband, and size to your band measurement first in sports bras. Wash all activewear cold, inside out, and air dry to protect stretch and colour.

Most activewear problems are not about the fabric. They come down to three decisions: what size you pick, how much support you need, and how you wash what you buy. Get those right and your leggings and bras keep doing their job for years.

Below are the questions we hear most often, answered directly. Each answer stands on its own, so you can skip to the one you need.

Sizing questions

If you are between sizes, choose based on how you will wear the piece. For leggings you train in, take the smaller size if you want compression and the larger size if you want a softer, everyday feel. For bras, your underband measurement matters more than your cup size, because the band does most of the supporting work.

Length is the other sizing variable people forget. Leggings with a length option let you match your inseam instead of accepting whatever hem the brand chose. If you are tall, a longer length prevents the waistband from riding down; if you are petite, a shorter length stops fabric bunching at the ankle.

• Measure your underband snugly, then size bras to that number first.
• Check whether leggings offer a length choice before assuming one size fits all heights.
• When in doubt between two sizes, size up for lounging and down for high-intensity training.

Support questions

Support is not the same as tightness. A bra that feels tight but lets your bust move is not supportive; a bra that feels comfortable but holds everything still is. Adjustable straps and a band you can tighten are the two features that let you dial in support without sizing up or down.

Match support level to activity. Walking, yoga, and everyday wear need light to medium support. Running and jumping need more. If you train in both worlds, one adjustable bra can cover most sessions, but a second bra for high-impact days is worth owning.

• Test support by jumping in the fitting room, not by how tight the band feels.
• Adjustable straps and bands give you more range from a single size.
• Replace a bra when the band stretches out and no longer stays put.

Leggings fit and fabric questions

Squat-proof is about fit as much as fabric. If a legging goes sheer when you bend, the size is usually too small or the rise is too low for your body. A higher rise and a slightly looser fit solve most see-through issues without changing the fabric.

Waistbands should sit flat, not roll. If yours rolls down during a workout, the band is either too narrow for your torso length or the size is too small. Trying a different length or rise often fixes it faster than sizing up.

• Do a squat and a forward fold in the fitting room before buying.
• A flat, wide waistband resists rolling better than a thin one.
• If leggings slide down mid-workout, check the length and rise before blaming the fabric.

Care questions

Wash activewear cold and inside out. Heat is what breaks down stretch fibres and fades colour, so cold water and air drying do more for longevity than any special detergent. Turn leggings and bras inside out to protect the outer surface from friction in the machine.

Skip fabric softener and dryer sheets. They coat technical fabrics and reduce their ability to wick moisture, which is the opposite of what you want. If odour lingers after washing, the issue is usually detergent residue or a damp gym bag, not the fabric itself.

• Cold wash, inside out, air dry: the three habits that matter most.
• Never use fabric softener on activewear.
• Wash bras in a mesh bag to stop straps tangling and stretching.

FAQ at a glance

What size should I order?

Start with your usual size. Size up in leggings for a relaxed feel or if you are between sizes, and size bras to your underband measurement. When torn between two sizes, choose based on activity: down for training, up for lounging.

How do I know a bra supports enough?

Jump and bend in it. If your bust stays put without the band digging in, the support is right. Adjustable straps and band are the features that make one bra work for more activities.

Why do my leggings go sheer or roll down?

Usually size or rise, not fabric. A larger size or higher rise fixes most sheerness and rolling waistbands. Test with a squat and a forward fold before you buy.

How should I wash activewear?

Cold water, inside out, air dry, no fabric softener. Use a mesh bag for bras. These four habits protect stretch and colour more than any special product.

Products that answer these questions

• Airywin Signature Leggings: Available in Colour, Size, and Length options at USD 44.50, with a catalog comparison price of USD 89.00. The length option lets you solve the hem and waistband-fit problems covered above instead of settling for one standard inseam.
• Airywin Support Adjustable Bra: Available in Colour, Size, and Bra Pads options at USD 34.00, with a catalog comparison price of USD 68.00. Adjustable support and removable pads let you tune coverage and hold without changing sizes, which is exactly what the support questions above come down to.
• [SET] Airywin All Day Bra & Leggings: A bra and leggings set at USD 78.50, with a catalog comparison price of USD 157.00. Buying the matched set removes the guesswork of pairing a bra and legging that fit and support consistently together.

Sizing, support, and care are the three levers you control. Get them right and your activewear stays comfortable, supportive, and presentable for far longer than the season you bought it for.