Cleaning: Suitable for machine or hand washing. Machine wash, cleaning is more convenient and fast; Washing hands can better maintain the lifespan and color of clothes. Suitable for: work/sports/vacation/dating, etc., can be worn in any occasion. It can be worn in spring, autumn, and winter, making it versatile and not easily outdated. Note: You can choose different colors and sizes. Before placing an order, please carefully refer to the size chart in the product image (not Amazon's size chart). If you have any questions, please contact me to handle them for you. Fabric: Comfortable, soft, lightweight, with good breathability and durability mens pullover , without rubbing or deforming the skin. It can perform important movements such as work and sports. Design: Casual and fashionable, button/drawstring men's sweatshirts, one of the essential summer outfits. Spring and summer can be paired with sandals/slippers.