Stay cool and protected with the TACKS 920 helmet. Designed for elite performance and cool comfort, this helmet features: Full AER-TEC Thermoregulation : Vents backed by 3D printed NEST TECH guide fresh air in and promote airflow throughout the helmet via ventilation channels, steering heat out through top and rear openings. R3FLEX Protection : 3-in-1 foam for all-around comfort and reliable dynamic response to high and low energy impacts. 3D-Printed Nest Tech & AER-TEC TotalDri Sweatband : Improves breathability and moisture control to keep you cool and dry. ADPTFIT 360 Adjustment System : Tool-free one step adjustment for an easy, secure and personalized fit all around. Modern Design : Sleek, close-to-the-head shape with enhanced venting.