100% Polyester. Fabric: Micro Pique, Snag-Resistant. 140gsm. Design: Plain. Neckline: Collared, Ribbed. Sleeve-Type: Short-Sleeved. Hem: Twin Needle Stitch. Cuff: Twin Needle Stitch. 3 Button Placket, Logo, Moisture Wicking, Side Vents, Taped Neck. Fabric Technology: H2X-DRY. Sun Rating: UPF 40+. Conforms to Safety Standard: WRAP Certified. Ref: UTPC4458