The Timberland PRO® Women's Cotton Core Flame Resistant Long Sleeve Shirt is constructed from flame-resistant, 100% cotton jersey to meet NFPA® 2112 Flame Resistant rating. Features Timberland PRO® WickWork™ moisture-wicking technology to keep you dry, a durable anti-odor treatment to help keep you smelling fresh, and built-in UPF 50+ protection to help block over 98% of the sun's harmful rays. Reinforced chest pockets with button closures secure essential items. Designed with a tapered athletic fit, this shirt is versatile enough to wear alone or layered over a tee.