6.5-ounce, 84/10/6 poly/rayon/spandex with stay-cool wicking technology UPF rating of 30 OGIO heat transfer label for tag-free comfort Embossed OGIO neck taping Self-fabric collar 1-button placket with merrow stitch bar tack Sandwich tone buttons Raglan sleeves Merrow stitching detail at shoulders Embroidered dyed-to-match O logo icon on left sleeve Side vents