To wear this men's mock double hoodie, simply put it on like any regular sweater. The loose fit allows for easy movement. When it comes to sizing, remember Asian sizes are smaller, so choose a larger size if you're in between. Before buying, always check the size chart. If you have any questions, our customer service is here to help. For maintenance, it's best to follow the washing instructions on the label. Usually, a gentle machine wash with cold water is a good option. Hang it to dry to keep its shape. And don't be surprised if the color looks a bit different from the pictures because of your computer screen.