Arborist Helmet System Our Best Selling Arborist Helmet is now Available in a Complete Forestry Set! System Includes: 1 Arborist Brimless Helmet. Visor with Rubber Gasket. Full Mesh Forestry Screen. Noise Reducing Earmuffs (25DB) Our Brimless Arborist Helmets Meet ANSI Z89.1-2009 Requirements. Type I, Class E, G, and C. Meets or Exceeds EN 397/A1:2000. 6 Pt Ratchet Suspension. Easy on/ off adjustable chin strap, with a soft, flexible chin guard. New design with a built-in Rain Trough. Expandable & Customizable with optional accessories! 6 Colors to Choose From