2XU’s commitment to zoning the body with the right fabrications in the right anatomical regions of the body is continued through into the web of this micro-climate run vest. Wind/rain resistant VAPOR+ front panel, with mesh panels for breathability, stretch SMD THERMO fabric incorporating denier graded tactel yarns for unparalleled moisture management and EXTREME MESH panels on back create a micro climate designed to meet the highest demands placed upon it.