The go to t shirt for warm weather hiking the regatta mens breakbar ii t shirt is designed to keep cool and active constructed with isovent honeycomb polyester the t shirt is lightweight and gently moves moisture from the surface of the skin for rapid evaporation and increased cooling mesh inserts aid airflow and breathability and a zip neck design allows for a personalised ventilated fitactivityrunning walking hiking cyclingcolour swatchorangegendermensmaterialhoneycomb polyeste