【All-Around 3D Protective Cushion + Replacement Cushion Bonus】The inside features soft velvet and sponge cushions, providing all-around protection for the forehead, back of the head, temples, and crown. Porous materials are used, offering excellent sweat absorption. Furthermore, replacement cushions (for the forehead and back of the head) are included, ensuring helmet hygiene. This helmet is recommended for cyclists, including those who ride road bikes and for general cycling. 【11 Ventilation Holes + 3-in-1 Adjuster System】This bicycle helmet is unisex, suitable for adults and children, and is ideal for various scenarios such as road biking and motorcycling. The design with 11 ventilation holes allows for good airflow, keeping the head comfortable. In addition, the advanced 3-in-1 all-around adjuster system allows for fine-tuning of the side ears, under the chin, length, and head circumference. Enjoy a comfortable ride with this bicycle helmet when cycling or riding a bicycle. 【500.0M Long-Distance Illumination + Ultra-High Brightness + Latest Improvements】The USB rechargeable (Type-C) headlight is equipped with ultra-high brightness LEDs, with a brightness approximately 20 times that of ordinary small headlight illumination. Improved and with a lifespan of 150,000 hours. It adopts a high-elastic nylon elastic band that does not deform even when immersed in water and can protect the skin. The high-elastic headband has breathability and adjustable elasticity, so you won't get tired even after wearing it on your head for a long time. PSE certified battery, can be used repeatedly by charging, eliminating the need for battery replacement, which is economical, and has a dedicated battery storage box. It adopts a large lens, a large aperture, an aluminum alloy attack head design, 1.5-meter impact resistance, and the highest durability. 【Sensor Function】Built-in non-touch sensor, pressing and holding the power switch for 3 seconds enters sensor mode, and you can switch the light on/off by waving your hand in front of the headlight (within 10cm distance). It is also convenient for fishing, garden maintenance, car repair, etc., in dark situations. You don't need to touch the headlight with dirty hands. (If you think the sensor is too sensitive, you can put tape on the sensor)