COR3-tech crewnecks with personality and everyday performance you can bank on. Derek DeYoung brings vibrant vibes to Simms new SolarFlex Artist Series LS Crewnecks. Shirts are powered by COR3 Technology for quick-dry, wicking, odor-killing performance, while a staunch UPF50 rating squashes harmful UV rays. Additional features include a higher backed collar, smooth flat-seam construction, and mobility-enhancing raglan sleeves. Traditional fit comes standard.Quick-dry, wicking, anti-odor & UPF50Flat-seam construction for maximum comfortRaglan-sleeve design for unrestricted movementCrewneck design with higher backed collar for additional sun protection Products using the COR3 Technology fabric finish have a UPF rating of 30 or greater, properties to minimize odor and outstanding wicking performance for important moisture management. The anti-odor finish helps control odors caused by a wide range of microorganisms (mold, mildew, algae, yeast) is compatible with virtually all fabrics. All of our performance cotton clothing utilizing COR3 also feature COR3 EZ. The "EZ" means easy care and indicates that garments featuring this treatment will travel well and resist wrinkles.