The Bell Sidetrack II is a top choice for a mountain bike helmet for kids, providing comprehensive coverage for enhanced safety. It features Bell’s fusion in-mould polycarbonate shell, bonded to an EPS foam liner, offering superior impact protection and comfort. The helmet includes 14 integrated channels to ensure optimal airflow, keeping your child’s head cool regardless of speed or weather conditions. With the Ergo Fit design and adjustable dial, the Sidetrack II ensures a secure and comfortable fit, maximizing protection. This stylish all-mountain helmet is perfect for keeping adventurous children safe.