All Novesta soles are made of natural rubber. Natural rubber is a raw material that is mixed with chemicals to increase flexibility and durability, and then thoroughly kneaded with pigments for colouring. The carefully kneaded rubber is the keystone of the Star Master, which doesn't peel away from the upper and has astonishing strength. The rubber is folded like croissant dough and cut into shapes such as soles and rubber boots. In addition, the headquarters factory, which specialises in rubber for products, also produces tyres for European car tyre manufacturers and technical rubber for industrial products. The colourful sole of the Star Master model, which is famous for its wide range of colours, was born from the high level of technology and years of experience gained through consistent rubber production.