ON Race Slim-Fit Perforated Stretch-Jersey Shorts
From MR PORTER
ON designs performance kit for you to "get that runner's high, faster". ; These 'Race' shorts are cut from ultra lightweight stretch-jersey that's perforated for optimal airflow ; Bonded seams minimise friction, while an elasticated drawstring waistband secures the fit ; Discreet back zipped pocket comes in handy for your phone or energy gels