This half-zip jacket is made from a material that combines stretch, water repellency, and UV protection. It's a packable design, making it convenient to carry, and a handy piece to have on hand for when it's a little chilly or in case of sudden rain. The unlined construction allows for wear throughout the seasons. It has some wrinkles from being left in a golf bag, but it's almost new. The last photo is from the manufacturer.