To use your Jehsee's Cave of Wonders sweatshirt, just put it on and enjoy its comfort. When it's time to clean, remember to machine wash it cold and turn it inside out. Wash it with similar colors to prevent color bleeding. Only use non - chlorine bleach if necessary. After washing, you can hang it to dry for the best results, or you can use a tumble dryer on a cool or low - heat setting. Stay away from fabric softener as it can make the colors fade. Also, don't try to iron it or take it to a dry cleaner, as these can damage the fabric.