Swim arm bands are inflatable flotation devices that are worn on the arms to help children and inexperienced swimmers stay afloat while in the water.Swim arm bands are designed to be comfortable to wear for extended periods of time. They are made from soft, lightweight materials that do not chafe or irritate the skin.swim arm bands are a great choice for anyone who is learning to swim or needs extra assistance staying afloat in the water. They are easy to use, comfortable to wear, and come in a variety of fun designs. Whether you're spending a day at the pool or heading to the beach for a weekend getaway, swim arm bands are sure to provide added safety and enjoyment while in the water.