Blue - Small. The RaceQuip 111 series single-layer SFI-1 racecar driver's fire suit jacket is made from Pyrovatex® FRC material. Note that sometimes this material is referred to as "fireproof", but all auto racing safety gear is "fire retardant". Pyrovatex® offers the maximum combination of overall flame and heat protection, durability and comfort for the price. This fire-retardant cotton based (FRC) material is used because it retains the softness and breathability of cotton and will wick away moisture from the skin. Pyrovatex® fabric is gentle and non-irritating to even the most sensitive skin. The treatment process leaves the exterior surface shiny and supple. Since the Pyrovatex® process combines a chemical agent with the raw cotton fibers to create a bond at the molecular level, with.