PETZL VIZEN MESH Face Shield for Tree Care for VERTEX and STRATO Helmets, with EASYCLIP SystemThe VIZEN MESH face shield protects against flying wood chips and shavings. This full coverage shield offers complete face protection while ensuring good visibility. It is easily installed on VERTEX and STRATO helmets, thanks to the EASYCLIP attachment system. Description Protects against projected objects during tree care work: full coverage shield protects the eyes and face guaranteed ventilation and visibility, even under poor conditions (e. g.