MOMO racing boots are made from a combination of Calf Leather and Air Leather. Its these two materials that provide the driver with a comfortable and breathable boot. Since 1964, MOMO has delivered the highest standard in consumer and racing products. MOMO use quality grade sourced materials from around the world. From the finest leathers used for the Shift Knob range, to the latest high tech fireproof nomex materials used in underwear and race suits.