Like the workout sweats of decades past, this quarter-zip is built from French terry. The looped interior and open-knit weave allow airflow, making it more breathable than modern fleece. The quarter-zip front adjusts for ventilation and easy on/off.Raglan sleeves provide unrestricted movement. Wide rib-knit cuffs and hem hold their shape, with a 1x1 rib-knit collar for comfort.