Met espresso helmeta versatile all rounder the espresso offers safety reliability and comfort in one user friendly package our occipital retention system helps dissipate shock whilst our safe t twist dial ensures fine tuning the fit is a cinch featuressafe t e twist dial at the back of the helmet for easy one hand size adjustmentanti insect net prevents insects from entering the helmet through the front air intakesinternal padding is made from anti allergenic washable fabric adjustable from