【 Helmets for adults safe and sturdy】Gudook adult One-piece molding bicycle helmet, made of thickened High-density EPS buffer layer inner shell and PC outer shell, shock absorption, high impact resistance, provide higher safety performance and meet the US CPSC ASTM bicycle helmet safety standard. 【Bike helmet for scientifically Designed 】 Lightweight and durable, with a 22-hole ventilation system to enhance the air circulation inside the helmet, distributed mesh thickened inner lining and head fully cushioned, more comfortable to wear, and can be easily disassembled for cleaning. 【Bicycle helmet with Visors】Riding helmet visor can be detached or assembled to provide shade while riding, allowing you to reduce glare, improve visibility, and direct airflow. 【Bike helmets for】urban commuting city road mountain biking, enduro and off-road, skateboarding, roller skating, etc. This helmet is designed 14over age for European and American men and women's riders. 【Cycling Helmet adjustable】bike helmets for men/women is fully adjustable to fit the head circumference size (M) 53-57cm/20.86-22.44 inches, (L) 57-61cm/22.44-24.1 inches, provided by the adjustment dial, thickened chin pad, and adjustable length chin strap to make it Comfortable fit and comfortable to wear. Gudook 23 years Committed to advancing safety technology, has been a leader in home and outdoor sports safety and continues to develop the most innovative products in the industry.Gudook sports protective gear covers many outdoor sports such as skiing, skating, cycling, biking, skateboarding, roller skating, MTB BMX, etc. The main products include bicycle helmets for adults, skateboard helmets, children's helmets, electric vehicle helmets, goggles, knee pads, elbow pads, wrist, back, armor, etc., to provide consumers with a full range of sports protection from head to toe. To ensure the quality of products, so that the majority of sports enthusiasts can have safe and cost-effective protective gear.Gudook all products will be developed and designed concerning the United States, Europe, national and industry standards, and choose the stricter ones. Our Gudook adult one-piece bike helmet is fully integrated with the American people. Designed for exercise habits, especially for Americans. It wears more precisely, has a more complex design, and has the lowest fail-safe rate on the market. To provide safer and more reliable products, we continue to develop materials and safety technologies.We only want to provide our customers with the best products and protect your home. The excellent quality and the reputation of "safety" make the Gudook brand popular among sports enthusiasts, and it has also become a hot-selling sports protective gear brand on other major e-commerce platforms. Focus on the development, production, and sales of various fashion outdoor sports protective gear. With "safety, vitality, fashion" as the design guide, our goal is to provide quality products + excellent customer experience + excellent technical support.Gudook not only escorts you and your family but also helps support charities. Thank you for giving back to the community with us.