180 g/m² Super Lightweight Material. 50% Nomex, 50% innovative viscose fibers for ultimate in weight savings, flame resistance & thermal insulation to combat heat stress and fatigue. Exceeds both SFI 3.3/5 and FIA 8856 homologation standards. Minimal flat stitched seams with specialized flame resistant thread for added comfort. Special non-chemical dry treatment to promote cooling and combat odor. Highest level of elasticity and softness.K1 RaceGear 26-FHS-N FLEX Nomex Balaclava, Black