To use this vest, simply put it on over your top. You can wear it for casual outings or as a layer during cooler days. When it comes to care, make sure to machine wash it in cold water to prevent any shrinkage or damage. Tumble dry on low to keep it in good shape. Avoid using bleach or harsh detergents as they can affect the fabric. Also, check the size chart carefully before purchasing to ensure you get the right fit.