Here's how to use and take care of your Momma Gorilla's Frozen Heads sweatshirt. You can wear it casually on a daily basis, it's great for any season. When it comes to cleaning, just throw it in the washing machine on a cold cycle, and make sure to turn it inside out and wash with similar colors. If it gets dirty and needs bleaching, only use non - chlorine bleach. After washing, you can hang it to dry for the best look, or use the cool or low - heat setting in the dryer. Don't use fabric softener because it might make the colors fade. And remember, don't iron it or take it to the dry cleaner, as these can damage the fabric.