To use this wetsuit top, simply zip it up from the back. Put your arms through the long sleeves. It's great for surfing and other water sports. When you're done, rinse it with fresh water to remove salt and sand. Hang it to dry in a cool, shaded place. Avoid exposing it to direct sunlight for too long as it can damage the neoprene. Also, don't use harsh chemicals or detergents to clean it. Just a mild soap is enough. Store it flat or rolled up to keep its shape.