Details BrandSMITH ColorWhite/Black SizeMedium Special FeatureLightweight Model NameMainline MIPS DeProduct description SMITH Helmets Inner Strength 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 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 Better Ventilation AirEvac channels promote airflow to prevent fogging of eyewear. Vision Integration Vision Integration Designed to function with Smith Goggles or Glasses as the ultimate system. PURSUE YOUR THRILL Forefront 2 Signal Convoy Persist Session Forefront 2 Signal Convoy Persist Session Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews — 4.7 out of 5 stars 1,316 — 5.0 out of 5 stars 1 4.6 out of 5 stars 173 Price — $51.00 — — $102.00 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 Zonal Zonal MIPS ? ? ? ? ? Colors 8 5 5 5 8 Features & details Our Pinnacle, Downhill-Certified Helmet: Made for going big, going fast, or both, the Smith Mainline gives you the confidence to get aggressive on the trail, whether you're slaying the EWS in Whistler or suffering through the last stage of your local enduro race Your Protection at its Core: Our Mainline helmet features complete Koroyd coverage for lightweight, energy-absorbing & ventilated protection, MIPS Safety Protection System. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older as well as CE EN 1078, NTA8776 E-Bike and ASTM F1952 Downhill Stay Cool & Eliminate Foggy Lenses: With 21 fixed vents for consistent airflow, hybrid X-Static/Ionic+ lining for sweat-activated odor control and lightweight, low-bulk single-layer webbing, you’ll stay cool and your glasses or goggles will stay clear Includes Multiple Padding Sets for a Comfortable Fit: Includes 3 washable cheek pad kits, 2 crown liners + 2 neck rolls to let you fine tune the fit; the visor adjusts into three positions Born on the Mountain, Built from Innovation: Smith is a performance eyewear and helmet brand for those inspired to pursue new and deeper connections with the outdoors; we’ve been outfitting consumers with the confidence to experience more since 1965