Fire service overtrousers with outer material PBI Gold®, weight approx. 200 g/m2, waterproof lining H024-4. Lining PARALINEX® light. Signal strips 3M 3-fold, 50 mm. Inner KEVLAR® felt knee protectors. Outer "corrugated" structural fabric, knee protectors from 100 percent KEVLAR®, dyed black with flame-retardant silicon carbide coating. Performance data: Xf 2, Xr 2, Y 2, Z 2.