Skullerz 8966 Class C Lightweight Cap-Style Hard Hat, Adjustable Venting, 6-pt Rachet Suspension, Blue, Ships in 1-3 Bus DaysFlexible open suspension frame and always-open venting improve air circulation and make for a cooler hard hat in the heat.Removable foam-backed hard hat sweatband is breathable and washable.Height adjustable 6-Point suspension for a more customized comfortable fit and better dispersion of force (compared to 4-Point systems). WARNING: Cancer and Reproductive Harm -- www.P65Warnings.ca.gov - Cancer:N/A;;Reproductive Harm:N/A