Aomiun Bike Helmet for Adults Lightweight Adjustable Cycle Helmet, CE Certified Safety Road Cycling & Commuting Ventilated PC Shell Men Women

【Aerodynamic & Ultra-Lightweight Design】Engineered with a streamlined profile to minimise wind resistance, enhancing speed and stability during rides. The one-piece unibody construction ensures durability without compromising breathability, while the premium Cat Eye Pink/Black Discoloration/Light Discolorationmodern/Matte Black adds a sleek, modern look for urban commuters and road cyclists. 【High-Strength PC Shell | 4X Impact Resistance】Built with a rock-solid polycarbonate outer shell, offering exceptional protection against collisions and harsh weather. The adjustment system adapts to head shapes from 55-59(M)/58-62(L)cm, ensuring a customised fit for all-day comfort. 【Shock-Absorbing Core for Ultimate Safety】The high-density EPC mid-layer absorbs and disperses impact energy across the helmet’s structure. Paired with a thickened, washable inner liner, it delivers sweat-wicking comfort even on 40°C summer rides. 【10-Second One-Hand Adjustment】Quickly fine-tune your fit with the smooth rotary dial – no awkward fumbling! The 4-level vertical adjuster accommodates hairstyles (braids, ponytails) and goggles, while the 360° wraparound retention system eliminates wobbling on bumpy trails. 【18 Air Vents | Anti-Slip Chin Strap】Stay cool with wind-tunnel-optimised ventilation that prevents overheating during climbs. The soft padded chin strap reduces pressure marks, and the quick-release buckle lets you secure the helmet effortlessly – perfect for city commuting, mountain biking, or weekend leisure rides!