How to use: Simply put on the hoodie like you would any other piece of clothing. You can adjust the drawstring on the hood to keep the wind out when it's cold. Wear it for casual outings on weekends or just to stay warm at home on cold winter nights. Notes: Always check the size chart carefully before buying as different suppliers and brands may have different sizing. If you usually wear a certain size in US sizes, be aware that you might need a different size in Asian sizes. Maintenance: You can machine - wash these spandex hoodies on a gentle cycle. Use mild detergent and avoid using bleach. Hang them to dry to keep their shape.