PYNRS Humboldt Flex Singlet Size:Large and fitness runs

and fitness runs

With preloaded cardio

It's the perfect addition to your classic BIRKENSTOCK sandals

ON crafted a more durable outsole with thicker padding and smaller cavities in the tread

Durable and Stylish: Sturdy suede and canvas upper with iconic Sidestripe™ for a classic look

PYNRS Humboldt Flex Singlet Size:Large and fitness runsThe Humboldt Flex Singlet keeps you light and fast with soft, breathable fabric and bonded low profile neck and armholes. Reflective tape at the front and back delivers 360 visibility when the city lights come on. Finished with a reflective logo, this singlet is made for pushing pace while staying street ready.