Obsidian Black 1 / 7
Hybrid Race BraObsidian Black / S
Hybrid Race Bra

Fit guidance

Find your size

A close, compressive bra with a firm underband. Choose primarily from underbust, then check bust coverage.

Find Your Size — Body Measurements

Enter your body measurements in centimetres. Body measurements are the final fit reference.

Size Underbust
S 68–74 cm
M 73–79 cm
L 78–84 cm
Your measurements (cm)
Fit preference

Choose the larger size if you are sensitive to band pressure or want more coverage. Choose the smaller size only for a deliberately firmer fit.

Fit Notes

At approximately 75 cm underbust, S can be worn but is tight; M is the comfort recommendation.

Product Measurements

Garment measured unstretched. Measurements are not body measurements.

Size Bust Hem / Underband Length
S 68 cm 62 cm 28.5 cm
M 72 cm 66 cm 29.5 cm
L 76 cm 70 cm 30.5 cm

Design story

Confidence when intensity rises.

Designed for training days that demand a little more.

The Race Bra combines secure medium-high support, technical performance fabric and a distraction-free racerback fit for running, conditioning and hybrid training.

Hybrid Race Bra
Hybrid Race Bra

MotionForm

Built for movement under load.

Support
Medium-high support
Length
Performance coverage
Fabric
75% Polyamide / 25% Elastane

Fit guidance

Choose by measurement. Refine by feel.

Secure medium-high support with a streamlined racerback, supportive underband and removable cups.

  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Cora

Love this bra. Fits perfect and gives me so much support. Never have to adjust it! Fits great on my broader back which for me it’s always hard to find something that fits right! Highly recommend this for any sport.. CrossFit. HYROX. Weightlifting!

Cora review photo
R
Rachel

Love this bra top 🫶 The Race Bra surprised me immediately. It wasn’t a style I would naturally have chosen, but once on, I absolutely loved it. It’s incredibly flattering, beautifully soft and genuinely comfortable. It’s supportive, stays put with minimal bounce. Another little thing I absolutely love - the pads inside the bra do not move about and fold when in the washing machine, so you don’t get that irritating ritual of fiddling about trying to put the pads back in place (if you know you know 😂) I’ve worn it for both coaching and hard training sessions and almost forgotten I had it on.

I’ve run, lifted and done HYROX-style training in them and they simply move with me.

The fabric feels premium, the burgundy colour is absolutely beautiful and the whole set manages to feel supportive without being restrictive.

As a coach and HYROX athlete, I’m quite particular about activewear. It needs to perform, not simply look good.

Formwynn does both.

A brilliant start from an exciting new British brand — and I’m genuinely looking forward to seeing what they create next. 🇬🇧❤️

Rachel review photo
P
Pal

Really impressed with the Hybrid Race Bra. I’m 75B and wear a size S， it feels a little tight, but I actually love that secure, held-in feeling, especially for strength training.

Pal review photo
D
Dia

Love love love this bra! Great support and the material is super good quality.

Comparison

Compare the bras

Race Bra Medium-high Racerback stability Running and hybrid
Wynn Bra Medium Sculpted cross-back Pilates and studio
Ease Bra Light-medium Convertible support Yoga and everyday

Curated for this piece

Complete the look

Pieces selected to move together.