6.35 oz., 92% polyester, 8% elastane; Material wicks sweat & dries really fast; UPF 40 protects your skin from the sun’s harmful rays;Textured, soft anti-pick, anti-pill fabric has a snag-free finish; Four-way stretch material moves better in every direction; Updated placket with low-profile buttons for a modern, clean look; Flat knit ribbed collar ; Fuller cut for complete comfort;