Scorpion VX-R70 Quartz Off-Road/Dirt Motorcycle Helmet (Neon Yellow, X-Large) TCT Composite shell: Developed exclusively by Scorpion, the revolutionary TCT(Thermodynamic Composite Technology) process consists of a proprietary 5 layer blend of interlaced and specially formulated fiberglass, aramid and organic poly-resin fibers Advanced Dual-Density EPS: Advanced multi-layer EPS provides efficient energy displacement in key areas; EPS liner throughout entire chin bar KwikWick II Liner Fabric: KwikWick II anti-microbial fabric keeps you cool and dry in warm weather, warm in cool weather Liner is easily removable and washable Aero-Tuned Ventilation: Three intake ports across the eyebrow force cool air in while four exhaust vents maximize movement of hot air out; Five intake ports on the chin bar maximize fresh air AirFit Liner Inflation System: Inflatable cheek pad system for superior personalized fit