A men's crew neck sweatshirt is a type of casual clothing that is made of a soft, stretchy material, typically cotton or a cotton blend. The neckline of the sweatshirt is a round, ribbed collar that sits close to the neck. Crew neck sweatshirts are often worn as a standalone top or as a layering piece over a shirt or t-shirt. They are popular for their comfort and versatility, and can be dressed up or down depending on the occasion. Crew neck sweatshirts are often available in a variety of colors, sizes, and styles, and can be worn by men of all ages.