From the Simms website:  Guide-favorite shirt, with a quick-dry, wicking and anti-odor skill set Simms' Guide Shirt elevates your fishing kit to pro-level performance thanks to its marl knit construction that blends two yarns for a comfortable cotton-like feel.   On the water, technology upgrades include quick-dry, wicking, and UPF 50 performance.  Three zippered fly-box compatible pockets add valuable storage.  Extended Sun Cuffs enhance overall coverage.  Articulated sleeves and off-shoulder seaming boost casting mobility.  And a vented, mesh-lined back panel wicks moisture, while promoting airflow.  Traditional fit comes standard.

Features:
COR3™ Technology _ quick-dry, wicking, anti-odor & UPF 50
Three zippered fly box compatible pockets
Extended Sun Cuff for protection
Articulated sleeve & off-shoulder seaming for ease-of-casting
Vented, mesh-lined back panel wicks moisture, promotes air flow
FABRIC TECH: 75% polyester/25% nylon with COR3™ Technology Approx. Weight: 8 oz.