Kali Chakra Solo Helmet The Chakra Solo builds on the best selling Chakra line of helmets. It features Kali Composite Fusion to create a strong and protective shell. Twenty-one large vents channel air over your head to help keep you cool when things heat up. The Dial-Fit closure system makes easy to adjust the perfect fit with one hand. The Chakra Solo is race ready helmet that is priced right for even recreational riders. Features Break-Away Visor provides protection from the sun's rays Anti-Microbal Padsreduce odor and stop bacteria Locking Buckle & Slidersprovide an excellent head fit Lifetime Crash Replacement Guidelines Sizing Helmet Size Extra Small/Small Small/Medium Medium/Large Head Circumference50 - 54cm55 - 61cm60 - 63cm | Kali | Chakra Solo Solid Helmet Men's | Size Small/medium In Black