Cosco s Euro football has a polyvinyl Chloride covering which is specially hand sewn and resistant to abrasion.The windings on the cover maintain the shape of the ball so that it does not flatten during gameplay.!! The ball has a latex bladder type which maintains the air pressure inside, so that you can enjoy a game without having to refill often. The ball is highly durable owing to its hand sewn cover and is resistant to wear and tear.