Using this cute NFL dog t - shirt is easy. Just slip it over your dog's head and adjust it to fit comfortably. When choosing the size, measure your dog according to the size chart. Be careful not to force it on if it seems too tight as it may make your dog uncomfortable. For maintenance, you can machine - wash it in cold water on a gentle cycle. Use mild detergent and avoid using bleach. After washing, tumble dry on low heat or let it air dry. This will help keep the fabric breathable and the colors and logo vibrant for a long time.