This shirt is super easy to wear. Just slip it on and zip up the front zipper. You can wear it on its own in warm weather or layer it over a T - shirt when it's cooler. When it comes to washing, it's best to use cold water and a gentle cycle to keep the color and fabric in good condition. Don't use bleach as it may damage the cotton. Hang it to dry to avoid shrinking. Before buying, always check the size chart carefully as different suppliers may have slightly different sizing. And that's all you need to know to enjoy your new shirt for a long time.