Airgoal Sports goals are built from a pliable hose material that ensures functionality and portability and ensures no rusting. All of the piping used in their products are made of a Nitro Thermoplastic polymer and high density terylene nylon yarn in a special five-step process that makes Airgoal products feel like other metal goals. When inflated the products are rigid like metal, but safe if struck by a player or child. Airgoal Sports? technology keeps the goals straight and it ensures that when a ball hits the bar it reacts the same as metal. Their technology provides excellent impact resistance, recoverability and extreme weather resistance and are also non-toxic and green.