To wear this Deus Ex Machina turnaround muscle tee, simply put it on like any regular shirt. It's great for everyday use, whether you're going to the gym or hanging out with friends. When it comes to washing, use cold water and a gentle cycle to keep the color and shape intact. Avoid using bleach as it may damage the fabric. Hang it to dry to prevent shrinking. If you need to iron it, use a low - heat setting.