Medium Impact Racerback Bra

Name: Medium Impact Racerback Bra
Brand: estroni
SKU: B-003-COC-6
Price: 130.0 AUD
Availability: InStock
Rating: 5.0 (1 reviews)

$130

ColourCocoa

Size

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Estroni sizes are Australian sizes. Pick your size system below and we will show you the match, or enter your measurements and we will find it for you.

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Measurements

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Bustcm Waistcm Hipscm

Estroni size conversion and body measurements. Measurements are body measurements, not garment measurements.
Estroni size (AU)	US	UK	EU	Bust	Waist	Hips
4	0	4	32	78–82 cm30.7–32.3 in	64–66 cm25.2–26.0 in	86–90 cm33.9–35.4 in
6	2	6	34	82–86 cm32.3–33.9 in	66–68 cm26.0–26.8 in	90–95 cm35.4–37.4 in
8	4	8	36	86–90 cm33.9–35.4 in	68–72 cm26.8–28.3 in	95–101 cm37.4–39.8 in
10	6	10	38	90–96 cm35.4–37.8 in	72–76 cm28.3–29.9 in	101–107 cm39.8–42.1 in
12	8	12	40	96–103 cm37.8–40.6 in	76–82 cm29.9–32.3 in	107–113 cm42.1–44.5 in
14	10	14	42	103–110 cm40.6–43.3 in	82–88 cm32.3–34.6 in	113–119 cm44.5–46.9 in
16	12	16	44	110–117 cm43.3–46.1 in	88–94 cm34.6–37.0 in	119–125 cm46.9–49.2 in
18	14	18	46	117–124 cm46.1–48.8 in	94–100 cm37.0–39.4 in	125–131 cm49.2–51.6 in

Getting the fit right

Our garments are made from a stretch merino blend and are designed to accommodate a range of body shapes.
If you are right on the line between two sizes, we size down for bras and tops, and size up for leggings and shorts.
For leggings and shorts, go by your hip measurement. For bras and tops, go by your bust.
The numbers above are body measurements, not flat garment measurements.
Still not sure? Email hola@estroni.com.au with your measurements and we will tell you which size to take. If it is not right when it arrives, see our returns and exchange policy.

How to measure

Bust. Around the fullest part of your bust, tape level and not pulled tight.
Waist. Around the narrowest part of your torso, usually just above the navel.
Hips. Around the fullest part of your hips and seat, feet together.

Measure over bare skin or close-fitting underwear, and keep the tape parallel to the floor.

6 8 10 12 14 16

95% Australian superfine merino

Soft, breathable, premium natural fibre.
Naturally odour-resistant

Stay fresh longer between washes.
Temperature regulating

Comfort across warm + cool days.
OEKO-TEX® certified

Made with care for sensitive skin.

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Quantity

Feel the Merino Difference in 14 Days — or Return Free

Try on a set at home. If it's not a noticable upgrade in softness, cool-dry comfort, and breathability vs your synthetic activewear, return it for free.

Free shipping to Australia on orders over $200, or a flat $9.95 under that.

Description

The Medium Impact Racerback Bra is women's natural fibre activewear - a merino wool sports bra made from 95% merino wool, with no polyester. A low tox alternative to synthetic sports bras, designed in Australia for women wanting extra support without plastic-heavy fabrics.

More support. Naturally.
Designed for medium-impact movement, this merino wool sports bra provides a more secure feel with a supportive racerback design, wider shoulder straps and a thicker underbust band for added stability during training.

Made from super-fine merino wool, it feels soft against the skin while naturally helping regulate temperature and resist odours. The higher coverage silhouette and removable padding make it equally comfortable for workouts or all-day wear.

Why you'll love it

95% merino wool, 5% elastane – natural performance without plastic-heavy fabrics
Medium-impact support – designed for higher support than our other bras
Wide underbust band – secure, comfortable fit without digging in
Wide racerback straps – enhanced support with unrestricted movement
Higher coverage – for those who prefer a little more coverage
Breathable & odour-resistant – wear more, wash less
Soft, supportive stretch – no dig-in, no cling
Removable padding – adjustable coverage
Lightweight & shape-holding – keeps its fit over time
Designed in Australia using premium ultra-fine merino fibres

Why women choose this over polyester

No plastic feel when sweating
Gentle on sensitive or hormonal skin
Medium support without relying on polyester-heavy fabrics
Comfortable enough to wear beyond workouts

Model & sizing

Liana (173cm) wears size 8
Nicky (174cm) wears size 12

Ask Us Anything

How Estroni merino compares

	Estroni merino	Polyester activewear	Cotton
Stays fresh between wears (odour-resistant)	✓	✕	✕
Regulates temperature — cool in heat, warm in cool	✓	✕	✕
Wicks sweat without the clammy, plastic feel	✓	partly	✕
No polyester or nylon	✓	✕	✓
Lets skin breathe	✓	✕	partly
Soft and non-itchy on skin	✓	✓	✓

Medium Impact Racerback Bra

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Getting the fit right

How Estroni merino compares

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