COR3â„¢-TECH CREWNECKS WITH PERSONALITY AND EVERYDAY PERFORMANCE YOU CAN BANK ON. Derek DeYoung brings vibrant vibes to Simms' new SolarFlexÂ® Artist Series LS Crewnecks. Shirts are powered by COR3â„¢ Technology for quick-dry, wicking, odor-killing performance, while a staunch UPF 50 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. Products using the COR3â„¢ 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 Simms performance cotton clothing utilizing COR3â„¢ also feature COR3â„¢ EZ. The "EZ" means easy care and indicates that garments featuring this treatment will travel well and resist wrinkles. Quick-dry, wicking, anti-odor & UPF 50 Flat-seam construction for maximum comfort Raglan-sleeve design for unrestricted movement Crewneck design with higher backed collar for additional sun protection FABRIC TECH: 100% polyester with COR3â„¢ Technology APPROX. WEIGHT: 7 oz.