By football I am assuming American football. It is a rubber bladder with leather sewn around it and then inflated.
The outside is leather with a rubber bladder on the inside which is pumped with air to inflate the ball.
The rubber bladder is put in and leather ball stitched, the ball is then blown up.
The toy known as a "bladder ball" was originally made from the inflated bladder of an animal, such as a pig or cow. The bladder would be dried and then inflated with air to create a ball for playing games. Over time, other materials like rubber replaced the animal bladder in manufacturing balls.
Originally people kicked around a pig's bladder. Later they used a leather ball, laced up, with a rubber bladder blown up inside.
A bladder is typically held in a container or pouch called a bladder bag. These bags are designed to securely hold and protect the bladder and are often made from durable materials such as nylon or rubber.
Volleyballs are made of synthetic or genuine leather, which is wrapped around a rubber and butyl material known as the bladder.
You need the rubber bladder to control the ball and makes playing eaiser and limits random floating during a game.
basketballs are made out of PVC material! the saying of 'its made out of pigs skin' was an old way of playing football and pigs skin was the only thing useful to use!
The 'invention' of football goes back as far as the 11th century in England. During those days the football was an inflated bladder, usually from a pig. This is where the term 'pigskin' came from. In 1876, colleges that played football agreed upon a ball to be used that consisted of a vulcanized rubber bladder encased within leather. So, to answer your question, the first football was made from a pig's bladder.
Some are made of synthetic rubber. The size four, hand-stitched item features a seamless inner bladder made of a rubber molded material. Company logos can be printed on the front panel. Items made of PVC are also available. Other materials include: waterproof, synthetic leather soccer balls with latex rubber bladders.
Soccer balls Originally it was made from an inflated pigs bladder with a leather casing. Nowadays the pigs bladder has been replaced by a rubber balloon. Although leather is still a common material for the exterior, the top balls are made from a variety of synthetic leathers, plastics and latex in order to provide a good shape and to create a ball that swerves and can be controlled easily by the players.