The MET Shelter is a robust and secure mountain bike helmet for adult riders. This unisex model features an extended rear section for enhanced protection of the head and temples. The construction consists of an in-mold polycarbonate shell with an EPS liner, ensuring comprehensive head protection. The helmet model received a 5-star rating from the Virginia Tech Helmet Lab for its safety performance. The integrated visor seamlessly connects with the helmet shell for a streamlined design. Twelve ventilation channels with an air channel system provide optimal airflow and comfort during rides. The Safe-T Sport adjustment system allows for precise fitting for a secure and comfortable fit. This helmet is compatible with the MET Rear USB LED Light, sold separately, and includes an internal eyewear holder. Available in size S with a head circumference range of 52-56 cm in matte white color. Made from durable polyester materials, this helmet is suitable for use in all four seasons and offers reliable performance in various weather conditions. To ensure the correct fit, measure your head circumference about 2.5 cm above the eyebrows and consult the size chart. If your measurement falls on the border between two sizes, it is recommended to choose the larger size for optimal comfort.