New Arrivals Men

Built for running and made to be seen. The Monogram Singlet features premium wicking fabric with unique Heartbreak touches. The fit is just right so it falls easily in your rotation of favorites for race day or every day. The subtle lines of our House Monogram pattern, the 'Flying H' guide the eye with strong direction - always forward, always up.

Product Details:

• Fits true to size
• Signature allover monogram print
• Raised heart logo patch on the left chest
• Left seam black, red, & white bartack stitches represent road, blood, & spirit
• Heartbreak wordmark vertical line at high back
• Center back reflective Heartbreak wordmark
• Heartbreak flag logo at right side seam
• 90% Polyester, 10% Spandex

Inspired by the beauty of the aurora borealis, the Aurora Singlet combines vibrant, sky-shifting patterns with breathable, fabric. Built for your fastest efforts and freest moments.

Product details: 

- Raised heart logo patch on the left chest
- Left seam black, red, & white bartack stitches represent road, blood, & spirit
- Heartbreak wordmark vertical line at high back
- Center back reflective Heartbreak wordmark
- Contrast right shoulder white patch

90% Polyester, 10% Spandex

Fits true to size

A soft, ultralight racerback with next-level breathability for racing and training without limits.

Unbeatable breathability

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.

Almost weightless

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.

Fashion-inspired fabric

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

Key features

• 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

Materials

Main Fabric: Polyester (recycled) 83%, Elastane 17%.

Heartbreak's Global Marathon Collection is our world tour of iconic cities and their defining races. Using the topography of each city with a slight gradient in the lines to create an all-over print, the garment is imbued with an artful representation of the physicality of the place. 

Other details include: 

- Right hip woven label that says, "Run Berlin, Risk Heartbreak" ; affixed with a pop yellow zigzag stitch. 
- Raised heart logo patch on the left chest
- Left seam black, red, & white bartack stitches represent road, blood, & spirit
- Heartbreak wordmark vertical line at high back
- Center back reflective Heartbreak wordmark
- Contrast right shoulder white patch

90% Polyester, 10% Spandex

Fits true to size

Heartbreak's Global Marathon Collection is our world tour of iconic cities and their defining races. Using the topography of each city with a slight gradient in the lines to create an all-over print, the garment is imbued with an artful representation of the physicality of the place. 

Other details include: 

- Right hip woven label that says, "Run NYC, Risk Heartbreak" ; affixed with a pop yellow zigzag stitch. 
- Raised heart logo patch on the left chest
- Left seam black, red, & white bartack stitches represent road, blood, & spirit
- Heartbreak wordmark vertical line at high back
- Center back reflective Heartbreak wordmark
- Contrast right shoulder white patch

90% Polyester, 10% Spandex

Fits true to size

Heartbreak's Global Marathon Collection is our world tour of iconic cities and their defining races. Using the topography of each city with a slight gradient in the lines to create an all-over print, the garment is imbued with an artful representation of the physicality of the place. 

Other details include: 

- Right hip woven label that says, "Run Chicago, Risk Heartbreak" ; affixed with a pop yellow zigzag stitch. 
- Raised heart logo patch on the left chest
- Left seam black, red, & white bartack stitches represent road, blood, & spirit
- Heartbreak wordmark vertical line at high back
- Center back reflective Heartbreak wordmark
- Contrast right shoulder white patch

90% Polyester, 10% Spandex

Fits true to size