The Under Armour Baselayer for women in medium size and gray color is a lightweight crew neckline pullover made from a polyester blend with wool. It is designed for activewear occasions, with features specifically for winter, fall, and spring seasons. The baselayer is suitable for various activities such as cycling, golf, hiking, running, and yoga, and is machine washable for easy care. The Under Armour brand ensures quality and performance, making it a reliable choice for cold and chilly weather.