... , 1 layer of kevlar . GY-GH7000:4 layers of fibre glass, 1 layer of kevlar and ... kevlar on the chin and on the forehead,4 layer of fibre glass. the liner is Absorption ... GY-GH8000: 1 layer of carbon, 2 layers of fibre glass, 1 layer of kevlar, 2 additional ... layers of kevlar in the chin and in the forehead ... , 1 layer of fibre glass, 2 layers of carbon Sizes:S#M#L;