Designed specifically for the needs of travelers, the lightweight, durable nylon Columbia Boy's Bahama Long Sleeve Shirt dries fast and protects you with built-in UV protection, while mesh-lined cape vents at the back shoulder keep the cool air flowing through. Features: Omni-Shade UPF 30 provides maximum protection for long hours in the sun Hidden vents at shoulders add bonus breathability Water repellent Quick dry Roll up sleeve Fishing Rod holder Fabric: 100% nylon