Product details updated this summer for even greater comfort and aerodynamics this versatile form flattering perform tri singlet complements the 2xu perform tri short 9 or perform tri short 7 sbr lite fabric delivers an unparalleled quick dry out of the swim and mid level gauge for optimal ventilation while flatlock seams a streamline cut and 5d elastane enhances comfort impressive moisture management maximum airflow stability muscle vibration control with excellent stretch rec