This men's short-sleeved gym hooded T-shirt is great for your workouts. To wear it, simply put it on like any other T-shirt. When choosing a size, always refer to the size chart as different suppliers and brands may have variations. For example, if you're a US size S, go for an Asian size L. As for maintenance, you can machine wash it in cold water with like colors. Avoid using bleach as it may damage the cotton material. Hang it to dry to keep its shape. And don't forget, it comes with free shipping, so you can enjoy it without any extra shipping costs.