To use this GIRthulhu hoodie, simply put it on over your clothes. It's suitable for various occasions, like casual outings or just relaxing at home. When it comes to washing, turn it inside - out and use a gentle cycle with cold water. Avoid using bleach as it may damage the print. Hang it to dry instead of putting it in the dryer to keep its shape and color. And store it in a cool, dry place when not in use.