Easton Ball Bag To play this game you need balls. Carry as many as you need with the Easton Ball Bag. This baseball carrying bag is constructed of durable 600 denier polyester and offers a plastic bottom, reinforced sides and an adjustable shoulder strap for easy transport. With the ability to hold up to five dozen baseballs, this bag has got enough room for all you have. Bring all your balls to the ball park with the Easton Ball Bag.