The Leatt AllMTN 1.0 V21 MTB helmet features a polymer compound shell and includes MaxiFlow impact foam with air channels that perform well at all speeds. It uses 360 Turbine Technology to reduce peak brain acceleration by up to 30% and rotational forces by up to 40% during impacts. The helmets extended rear coverage offers extra protection, while its adjustable visor with a breakaway function helps minimize rotational impact forces. With in-molded impact foam for excellent energy absorption, 14 ventilation vents for optimal airflow, and a moisture-wicking, breathable, and washable inner liner, it ensures comfort and performance on every ride.Features:- Polymer Compound shell in three sizes- MaxiFlow impact foam air channels effective even at low speed- 360 Turbine Technology- Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion- Reduces peak brain rotational acceleration by up to 40%- Extended rear coverage for added protection-Adjustable visor with breakaway function for rotational impact force reduction- In-molded impact foam for great energy absorption- Maximized ventilation with 14 vents effective even at low speeds- Moisture wicking, breathable, and washable inner liner

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