Optrel® Weldcap BumpWhile normal autodarkening hoods protect only part of the head, the Optrel weldcap bump now completely protects the crown of the head against painful strikes. The bump cap also provides additional stability and a feeling of safety like a full face helmet, without getting noticeably heavier. The weldcap stands for an auto darkening welders cap that combines the comfort of a casual cap with the advantages of a full welding helmet. The combination of