Heartbreak Women's Boston Born Singlet 2' Strategically placed silicone helps keep

Strategically placed silicone helps keep the belt in place and prevent slipping

Other midsole components such as airbags

get better period predictions and past ovulation estimates⁵

The wide design combines with underfoot flexibility to feel comfortable as you take off

Internal drawcord lets you adjust the waist when you're on the move

Heartbreak Women's Boston Born Singlet 2' Strategically placed silicone helps keepThe Boston Born apparel & accessory collection takes the shifting colors of metal under extreme heat found in our Oakley CNCPTS Heartbreak eyewear collaboration into garments built to move fast. The rib cage hits on the singlet call out the elevation and mileage in relation to the iconic race's starting line. The coordinates at the hem reference the collaborators global locations. The name Boston Born speaks to the pride of place where CNCPTS and