To use this sweatshirt, simply put it on and enjoy its comfortable fit. When it comes to maintenance, you can safely machine-wash it. Just follow the regular washing instructions on your machine. As for the colors, remember that the preview images might look a bit different from the real sweatshirt because of lighting when we took the photos or your monitor settings. And take care not to pull or tug too hard on the double-needle stitching or the drawcord to keep it in good condition for a long time.