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Ergodyne 8973 Skullerz Premium Vented Full Brim Hard Hat — Class C sun-protection 6485 Rockets vs 6435 Alphas:The Ergodyne 8973 Skullerz Premium Vented Full Brim Hard Hat is an ANSI ISEA Z89. 1 2014 Type I, Class C premium hard hat in the full brim vented configuration the combination of all around brim protection, passive ventilation for warm weather outdoor operations, and the premium ABS shell construction of the Skullerz 8973 for construction supervisors, civil engineers, and outdoor trades workers who need maximum environmental protection from sun and