Inner Strength Koroyd absorbs more energy on impact, offers better design flexibility and features more efficient ventilation compared to materials traditionally used in helmet construction. Added Protection The MIPS Protection System (PS) is found inside the helmet and, for certain impacts, can reduce harmful forces transmitted to the head. Better Ventilation AirEvac channels promote airflow to prevent fogging of eyewear. Vision Integration Designed to function with Smith Goggles or Glasses as the ultimate system. Forefront 2 Signal Convoy Persist Session Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews — 4.7 out of 5 stars 1,378 — 5.0 out of 5 stars 1 4.6 out of 5 stars 188 Good For MTB Road MTB Road MTB Sizes S/M/L S/M/L S/M/L S/M/L S/M/L Koroyd Technology Full no data no data Zonal Zonal MIPS ✓ ✓ ✓ ✓ ✓ Colors 8 5 5 5 8