Adult bike helmet with visor and LED, 21 ventilation openings, women's bike helmet, mountain and road bike helmet for men and women, adjustable size 57-61 cm (Red)

["Impact Resistant Bike Helmet"] This adult bike helmet is made of high-density imported EPS foam and durable PC material. Its reinforcement is safer than traditional helmets and helps absorb impacts to protect your head while cycling. ["Bike Helmet with LED Light"] The bike helmet features a safety taillight with 3 flashing modes (steady mode, slow flashing, flashing mode). The LED light can help people behind you clearly identify your direction, making it safer to ride at night or in foggy conditions. Please replace the CR2032 lithium metal battery in a timely manner when the battery is empty. ["21 Ventilation Holes"] The bike helmet has special aerodynamics and is equipped with 21 ventilation openings to keep you cool and dry, ensure the best airflow, effectively reduce air resistance, and increase speed. The bike helmet weighs only 300g (0.66 lb), which is very comfortable and lightweight. ["Removable Sun Visor"] With the removable sun visor, the helmet can resist branches and protect your eyes from the sun and wind. You can remove it when you don't need it. It is an ideal accessory for riders who enjoy road cycling or mountain biking. ["Adjustable Size"] TADPOLE bike helmets are suitable for various head sizes. You can easily adjust the helmet with one hand. Our bike helmets fit adult men and women with a head circumference of 22.4-24.0 inches (57-61 cm).