To use this sweatshirt, just put it on like any other top and enjoy the warmth and comfort. When it comes to washing, use cold water and a gentle cycle to keep the colors and fabric in good condition. Avoid using bleach as it might damage the design. After washing, tumble dry on low to prevent shrinking. Since it's made to order, be patient during the 7 - 10 business days processing time. And remember, the spandex in the collar, cuffs, and waistband gives it a stretchy fit, so don't pull it too hard to maintain its shape.