Sugoi Run Titan Sleeveless Top Male Body 100% Polyester / Side Panel, Under Armhole & Back Panel 100% Polyester Imported Rear pocket construction designed to store your run essentials Moisture wicking, antimicrobial fabric for breathability and cooling Smart seam construction to increase movement and reduce abrasion Zone construction featuring mesh inserts for airflow and breathability Rear pocket construction designed to store your run essentials