To use this long - sleeve apparel, simply put it on like you would any other shirt. It's great for everyday wear, workouts, or any casual activity. When it comes to cleaning, you can machine - wash it in cold water with like colors. Avoid using bleach as it may damage the material. After washing, tumble dry on low heat. Hang it up when it's dry to keep its shape. Store it in a cool, dry place to prevent any mold or mildew growth. Enjoy your stylish and comfortable long - sleeve apparel!