To use these hoodies, simply put them on and enjoy their comfort. For the zip-up, you can easily zip it up or down according to your preference. When it comes to washing, always use cold water and turn the hoodie inside out. Wash it with clothes of similar colors to prevent color bleeding. Only use non-chlorine bleach if there are stubborn stains. After washing, it's best to hang them to dry. If you're in a hurry, you can tumble dry on a cool or low heat setting. Just remember that fabric softener can make the colors fade, so avoid using it. Also, don't iron or dry clean these hoodies to keep them in good condition.