To use this t-shirt, simply put it on like you would any other shirt. It's great for casual outings, whether you're hanging out with friends or running errands. When it comes to washing, follow the care instructions on the label. Usually, you can machine - wash it in cold water with like colors to keep the geometric lattice pattern looking sharp. Avoid using bleach as it may damage the fabric. After washing, tumble dry on low to prevent shrinkage. When storing, fold it neatly or hang it on a hanger to maintain its shape. Also, always double - check the size chart before buying to ensure you get the right fit for your body.