ROCKBROS Road Aero Bike Helmet for Adults TT Triathlon Helmet for Cycling

SMALLER AIR RESISTANCE: ROCK BROS Newest road bike aero helmet, teardrop shape provides a best aerodynamic efficiency and ensure the air flow more smoothly. In the Wind Tunnel Testing, ROCK BROS aero helmet get a excellent performance. Comparison with ordinary road bike helmet, this aero helmet have more than 40% decrease of air resistance. EXCELLENT HEAT DISSIPATION: Comfortable temperature from excellent heat dissipation. Called "FORCED AIR COOLING", A wider vent in the front of helmet working with 4 deep internal channels insides are the best combination of aerodynamics and ventilation, which can aspirate more cool air to keeping the comfortable temperature, give you a enjoyable cycling experience. SAFETY CONSTRUCTION: Aero helmet is made of Multi-Density EPS and high toughness PC shell with Integral Moulding Technology. Because of this well impact toughness material, helmet protection system can work great while hitting. EASY-USE ADJUSTMENT SYSTEM: The latest magnetically helmet fastener, side strap adjust button and size adjust dial make up the easy-use adjustment system, which is good for the helmet adjust to different head size and more suitable for both men and women.…