Pregnancy changes your shape every few weeks, and last year's gym leggings can start digging in by week 20. This guide breaks down what actually matters in maternity activewear for pregnancy workouts and which everyday activewear pieces from Hot Deal Warehouse still earn their spot in your gym bag.

Why this matters

Most activewear on the market in 2026 is still cut for a body that isn't growing week to week. Buying dedicated maternity activewear for every trimester gets expensive fast, and a lot of bargain shoppers just want pieces that flex with them for as long as possible.

The good news: you don't need a specialist maternity label to train comfortably. You need the right stretch, the right rise, and fabric that won't dig in by week 30. That's a shopping strategy, not a product category, and it applies whether you're walking the treadmill or doing floor stretches at home.

Who this is for

This guide is for pregnant women who are still training — walking, yoga, light strength work, or postnatal recovery sessions — and want activewear that adapts instead of activewear that's replaced every six weeks. If you're budget-conscious and shopping at Hot Deal Warehouse for everyday activewear anyway, the same racks can work through pregnancy if you know what to look for.

What to look for in maternity activewear

Waistband stretch and rise

The waistband is the single biggest factor. A high, soft, non-binding waistband that can sit under or over the belly without a hard elastic edge will outlast a "regular" low-rise pair by months. Anything with rigid elastic or a zip fly is out from the second trimester onward.

Breathable fabric

Pregnancy raises your baseline body temperature, so fabric that traps heat gets uncomfortable fast during a 2026 Australian summer session. Look for lighter synthetic blends over thick cotton — cotton absorbs sweat and stays wet, which isn't ideal mid-workout.

Support without compression pressure

You want structure around the bust and back, not tight compression across the belly. Firm compression panels that were designed to "hold in" a flat stomach work against you once there's a bump to accommodate.

Length and layering flexibility

A longline top that can be worn alone in the first trimester and layered over leggings later stretches the life of a single piece. Two-piece sets give you this flexibility automatically because you can mix and match as your shape changes.

Sizing accuracy

Maternity bodies change size chart to size chart, week to week, which makes generic size guides unreliable. Checking a detailed activewear sizing guide before you buy saves a returns headache later, especially when you're ordering a size up from your pre-pregnancy normal.

Wash-and-wear durability

You'll be washing activewear more often during pregnancy as your body runs warmer. Fabric that holds its stretch after repeated washes matters more here than it does for occasional gym-goers.

Top picks for pregnancy workouts

None of these are marketed as maternity-specific, so treat the verdicts below as a fit-and-function call, not a medical one. Talk to your doctor about workout intensity regardless of what you're wearing.

The safe pick: Estelle Yoga Suit This two-piece activewear set is built to move freely rather than compress, which is exactly the profile you want as your midsection changes shape. At A$89.95, it's priced like a premium set but the two-piece cut means you can size the top and bottom independently as your shape shifts. Consider.

The everyday workhorse: Pump It Up Set A matching co-ord designed to move with your body rather than hold it rigid, priced at A$79.95. It's a solid pick for walking, light cardio, or postnatal stretching sessions where you want coverage without a tight compression waistband. Consider.

The cold-weather option: Women UK 2-Piece Activewear Set A fleece-based two-piece at A$79.95 built for comfort and warmth rather than performance compression, which makes it a reasonable pick for slower-paced training on cooler 2026 winter mornings. Consider.

Activewear worth checking for pregnancy training

Estelle Yoga Suit — Women's Two-Piece Activewear Set

Two-piece activewear set designed to move freely rather than compress.

A$89.95

Pump It Up Set — Women's Matching Activewear Co-ord Set

Coordinated top and bottom set designed to move with your body.

A$79.95

Women UK 2-Piece Activewear Set

Soft fleece two-piece set built for comfort and casual, active weekends.

A$79.95

If your training leans toward mat work and stretching rather than sets, a dedicated yoga and pilates leggings guide covers fabric weight in more depth than a general buying guide can.

What to avoid

• Hollow-out or cutout leggings — the Multicolor Tie Dye Hollow Out leggings look striking but the cutout panels sit exactly where your belly expands, and they aren't designed to stretch there. Skip for pregnancy training specifically.
• Bandage or high-compression styles — anything built to compress the midsection works against a growing belly rather than with it. Skip.
• Rigid low-rise waistbands — a hard elastic edge that sat comfortably pre-pregnancy will dig in by the second trimester. Skip once you notice any pinching.

Verdict comparison

FAQ

One last thing

The waistband test takes ten seconds and saves a return: pull the waistband to its widest stretch and press it against your forearm for five seconds. If it leaves a deep red mark, it will dig in by week 25 no matter how good the rest of the fit is.

Related guides

• Best budget gym leggings for women in Australia
• Cheap activewear for women on a budget