This casual long - sleeve shirt is super easy to use. Just slip it on and you're ready for any casual event. When it comes to washing, you can use a gentle cycle in the washing machine with cold water to keep the graffiti prints looking fresh. Hang it to dry to prevent any shrinkage. As for the size, always check the size chart as different suppliers may have variations. And don't worry about the season, this shirt can be worn all year round. Layer it with a jacket in the cooler months and wear it on its own when it's warm. Have fun styling it!