You can wear this sweatshirt casually on any day. Just pull it over your head and you're good to go. Since it's made to order, please be patient during the 7 - 10 business days processing time. When it comes to washing, use a gentle cycle with cold water to keep the fabric and the design in good condition. Don't use bleach as it might damage the colors. Hang it to dry to prevent shrinking. And that's about it! Enjoy your comfortable new sweatshirt.