Outdoor Research Men's Astroman Long Sleeve Sun Shirt

The Astroman Long Sleeve Sun Shirt is a lightweight performance layer designed for climbing, hiking, and active days outdoors. Made from a breathable recycled nylon blend, it offers quick-drying comfort, movement-friendly stretch, and UPF 30 sun protection for long days in exposed conditions. Updated for Spring ’26, it features a streamlined hidden snap front and a zip chest pocket for secure storage. Comfortable, versatile, and easy to layer, it’s built for year-round adventure.