Fit
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Close. True to size.

Wei is 180cm / 5'11" and is wearing a size S
Your body measurements in inches
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Bust | 32.3 | 32.7 — 34.6 | 35 — 37 | 37.4 — 39.4 | 39.8 — 42.9 | 43.4 — 46.5 |
| Waist | 26.4 | 26.8 — 28.7 | 29.1 — 31.1 | 31.5 — 33.5 | 33.9 — 37.4 | 37.8 — 41.3 |
| Hip | 35.4 | 35.8 — 37.8 | 38.2 — 40.2 | 40.6 — 42.5 | 42.9 — 45.3 | 45.7 — 48 |
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Bust
Measure around the fullest part across bust points, keeping the tape horizontal.
Waist
Measure around the natural waistline, which is the narrowest part.
Hip
Measure around the fullest part of the hip.
Main Fabric: Polyester 83%, Elastane 17%.
Portugal
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Warm
Designed in collaboration with On athletes
Pleated back construction feels cool, airy and light
Perforated fabric on the front for exceptional breathability
Lightweight materials for a weightless feel
Bonded seams at the arms and neck for next-level comfort
Reflective logo on the chest
Race-day engineering meets fashion-forward design
Swiss-designed graphic detail

Our athletes asked. And we delivered. With fewer contact points, the singlet's pleated construction feels cool and light on the skin, while offering exceptional breathability.

Combining perforated and pleated fabrics, the Race Singlet feels almost weightless when worn. Bonded seams at the arms and neck mean next-level comfort and a distraction-free fit.

The pleated plissé fabric combines high-performance properties with an elevated aesthetic. For a unique look and textured feel that turns heads.