Pro Air Waterblock^® was created from Hawai’s research to increase the technology and the ventilation performance of the shoe. Adaptable to any shoe, it is a breathable insert capable of providing comfort unthinkable until today, especially in waterproof footwear such as rubber boots. Developed in composite material, Pro Air Waterblock^® ensures maximum ventilation thanks to the special internal membrane without losing its impermeability. Lightweight, durable and realisable in many shapes, sizes and colours, it is another Hawai Italia patent that changes the way we live footwear.