LUMDEER Bike Helmet for Adults - Ultimate Ventilation Bicycle Helmet with 27 Air Vents, Adjustable Dial & Straps, Ionic+ Padding,Transverse Internal Skeleton Enhancement Cycling Helmet

["Safety & Reinforced Structure: Advanced longitudinal framework + transverse internal skeleton - boosts structural integrity while enabling 27 optimized air vents for ultimate cooling.","Comfort & Advanced Inner: New zoned Pading - Anti-odor Inoic+ thick pads for forehead and 3D elastic pads for top. positive manage energy by controlling sliding displacement during impact, significantly improving safety and comfort.","Adjustable & Triple regulation: Magnetic anti-slip lock, Adjustable Dial & Straps, three dimensional head circumference adjustment system, such as a pair of big hands in the march can also Gently hold your head.","Modern stylish & future classics: Cool in standout yet understated minimalist aesthetic designed to become a contemporary classic. Cool in Feeling by 27 ventilation architecture. Effortlessly cool in any bike Cycling.","LUMDEER Service Guarantee: Respond quickly – Any cases can be response by LUMDEER's 48-HourInSPEED service by Manual online and the LUMDEER-data system. your valuable suggestions are our most precious asset and greatest contributor to creating a better cycling environment."]