LEATT Helmet MTB Trail 2.0 V24 Acid S 51-55cm

Lightweight 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%
In-molded impact foam for great energy absorption
Maximized ventilation with 20 vents
Visor with breakaway function for rotational impact force reduction
Dri-Lex® moisture wicking, breathable, anti-odor and washable inner liner
Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
Weight: from 300g (0.65 lbs)
Sizing
#S (51-55cm – 20-21 5⁄8")
#M (55-59cm – 21 5⁄8 - 23 1⁄4")
#L (59-63cm – 23 1⁄4 - 24 3⁄4")