To use this Guillermo's sweatshirt, just put it on and enjoy its comfort. When it's time to clean, machine wash it cold, turning it inside out and washing with like colors. Only use non - chlorine bleach if needed. After washing, you can either hang it to dry for the best results or tumble dry it on a cool or low - heat setting. Remember, using fabric softener might make the sweatshirt fade, and you should never iron or dry clean it. This way, your sweatshirt will stay in great shape for a long time.