One-piece molding technology for strong impact resistance and shock absorption. Convenient buckle features quick release design for quick and easy wearing and removal. Removable and washable inner lining for sweat absorption and comfort. Streamlined design for reduced wind resistance and ventilation. Suitable for various outdoor activities like riding, skating, skiing, scooters, and motorcycles. Description: Introducing our bicycle helmet, the perfect choice for adults seeking durability. This helmet features a one-piece molding design with a thickened High-density EPS buffer layer inner shell and PC outer shell, ensuring excellent shock absorption and high impact resistance. Scientifically designed, this lightweight and durable helmet boasts a multi-hole ventilation system that enhances air circulation, keeping you cool and comfortable during your rides. The distributed mesh thickened inner lining and fully cushioned head provide added comfort, while also being easily removable for convenient cleaning. Versatile and suitable for various activities such as urban commuting, city road biking, mountain biking, enduro, off-road adventures, skateboarding, and roller skating. The one-piece molding technology ensures double protection with a strong impact-resistant PC shell and shock-absorbing EPS foam body. Our helmet is equipped with a convenient buckle that allows for quick and easy putting on and taking off without any jamming. The removable and washable inner lining is sweat-absorbent, breathable, and keeps your head clean. Designed with a streamlined shape to reduce wind resistance and large ventilation holes for optimal airflow, this helmet provides both coolness and breathability. Item Name: Bicycle Helmet Material: PC Shell, EPS Foam Gender: Unisex Features: Streamlined, Low Wind Resistance, Comfortable Size Details: Suitable for Head Circumference: 55-61cm L: 28.5cm/11.22", W: 22cm/8.66", H: 13.5cm/5.31" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bicycle Helmet