The Outdoor Research Astroman Sun Shirt is a men's button-up shirt made of woven nylon and spandex fabric with a plaid pattern in shades of gray. It features a collared neckline, short sleeves, and a spread collar style with pearl snap closures. The shirt is machine washable and has accents of the Outdoor Research logo. It is designed for outdoor activities such as hiking and travel, with features like UV protection, lightweight, stretch, and breathability. The shirt is a regular fit and comes in size large.