STAY-COOL WICKING ODOR CONTROL ZONED VENTILATION STRETCH FLATLOCK SEAMS FOR COMFORT REFLECTIVE DETAILS | 5.6-ounce, 88/12 poly/spandex jersey body 4.1-ounce, 92/8 poly/spandex mesh panels Reflective O heat transfer at back neck Reflective stacked O heat transfers at back OGIO heat transfer label for tag-free comfort Mesh at collar, center back and under arms Modified raglan sleeves Reflective O heat transfer at right hem