Girls Activewear Singlet – Marcelle
Coverage & Comfort for Active Tween Girls
Designed to feel right now. Not to rush what comes next
Free Shipping over $99
30-Day Free Returns
You’re choosing something considered, not just something new.
Athletik Tween Promise
Designed specifically for girls aged 8–14, Athletik Tween focuses on comfort, coverage and confidence during the in-between years, clothing that supports movement and independence without asking her to grow up too fast.
| Size | 8Y | 9Y | 10Y | 11–12Y | 13–14Y |
| Height | 131cm | 141cm | 148cm | 156cm | 164cm |
| Chest | 68cm | 70cm | 72cm | 76cm | 80cm |
| Waist | 58cm | 60cm | 62cm | 64cm | 68cm |
| Hip | 72cm | 74cm | 76cm | 81cm | 86cm |
Measure the body (not the garment).
If between sizes, we recommend sizing up for comfort.
How do I choose the right size?
We've aligned our sizing with Australian standards, but every girl grows differently, especially in the in-between years. We recommend choosing based on how she likes to feel: snug and supported or a little more relaxed.
What if I'm unsure about sizing?
You're not alone — most mums are navigating this stage too. If you're between sizes or unsure, we suggest sizing up for a longer-lasting fit and extra comfort.
Will it fit as she grows?
Our pieces are designed with flexibility, stretch, and movement in mind, so they adapt to her body and keep her comfortable as she grows and moves.
What if the size isn't right?
We've got you. We offer a 30-day return policy, so if something doesn't feel quite right, you can exchange or return it with ease.
Is it really risk-free?
Yes — completely. No stress, no pressure. Just finding the fit that helps her feel confident, comfortable, and completely herself.
About this product
The softest girls activewear singlet made for tween girls aged 8 to 14. Breathable, four-way stretch, and designed to stay in place through every sport, PE class, and warm-weather day without rushing her to grow up.
Why tween girls (and their mums) love it
- Made from recycled polyester/elastane, buttery-soft against sensitive skin
- Four-way stretch moves with her body and snaps back into shape
- Moisture-wicking fabric keeps her cool and dry during active days
- Designed for tween proportions with age-appropriate coverage and no adjusting needed
- Woven branded elastic waistband for a secure, polished finish
- Versatile: wear solo, layer under a hoodie, or tuck into joggers
Fabric and performance
Crafted from recycled polyester/elastane, a premium performance blend that provides 4-way stretch, moisture-wicking technology, and shape retention after every wash. Lightweight, non-itchy, and breathable, ideal for sport, dance, school PE, and everyday wear.
