Leatts MTB 3.0 ALLMTN V21 helmet is the perfect protective head coverage and brain rotation/concussion reduction technology. The Leatt 3.0 helmet has a lower rear shell, than its trail brother the 2.0 helmet, offering greater protection for faster more aggressive riders. Our helmets feature 360 _ Turbine Technology, the helmet is lined with turbines which are 360__moving discs constructed from an energy-absorbing shape and material, this tech has two exclusive advantages, namely the reduction of rotational acceleration to the head and brain and the absorption of energy upon impact at concussion level.