The Relwen Pullover Sweater for men in size medium features a blue cotton/wool knit fabric with a tight-knit heather pattern. This sweater has a mock neck with a button Henley style, making it suitable for travel, casual, or workwear occasions. With long sleeves and a regular fit, this sweater is machine washable for easy care. The sweater is designed for all seasons and suitable for activities like walking, golf, and hiking, making it a versatile and stylish addition to any man's wardrobe.