Key benefits and features Reduces the risk of head injury by absorbing impact during rides. The Adult Bike Safety Helmet is designed to lessen the chance of a head injury, enhance safety, and soften the force of a collision. Fits comfortably for most adults. Suitable for head sizes 5461 cm. The wideangle design provides an unobstructed view, while remaining lightweight and secure for allseason use. Comfortable and easy to maintain. The ergonomic inner design keeps you cool and breathable, with a lining that is easy to clean and quick to freshen. grade materials for reliable protection. The helmet uses a PC shell with foam, a mesh cotton inner lining, and a buffer keel for multiple layers of protection. It is designed to be both comfortable and safe for outdoor activities. Specifications and construction Size: 5461 cm head circumference Materials: PC shell foam, inner mesh cotton lining, buffer keel Design: wideangle view, light weight, breathable interior Use: designed for adults and suitable for cycling and related outdoor activities 23 use scenarios City commuting and scooter trips: provides head protection during everyday rides in urban environments. Road cycling and training: suitable for road rides and daily workouts, offering safety without sacrificing comfort. Casual outdoor recreation or light trails: appropriate for park rides and light offroad use where head protection is desired. Care and maintenance Clean the interior lining as needed; the design supports easy daily cleaning to keep the helmet fresh and comfortable. Wipe the shell with a damp cloth and air dry.