Safety Hard Hat Has Patent-Pending Accessory Mounts On Front And Back That Ensure Klein Headlamps Attach Securely And Precisely, Every Time — No Straps Or Zip Ties Needed, Breathable, Padded Sweat-Wicking Sweatband And Top Pad Improve Comfort And Are Machine Washable, Adjustable Vents Can Be Opened Or Closed For Maximum Air Circulation While Meeting Stringent Safety Standards, Unique Suspension System Features A Flexible Open Frame Design To Provide Optimal Fit And Improved Air Circulation, Class C, Type 1 Hard Hat With Adjustable Vents Meets Ansi Z89.1-2014, Csa Z94.1-15; En397:2012+A1:2012-5.2.4 (Lateral Deformation-Ld); En12492:2012-4.2.1.2, 4.2.1.3, 4.2.1.4 (Front/Back/Side Impact), Easy, One-Handed Adjustment With Large Knob Ratchet Mechanism (Even With Gloves On). Soft Neck Pad Pivots To Clear Bandanna Knots And Pony Tails, Universal Accessory Slots On Both Sides For Attaching Hearing Protection, Face Shield And More, Includes Removable Klein Headlamp/Magnetic Work Light (Khh56220) With 3Xaaa Batteries, Klein Rechargeable Headlamp, Alkaline Headlamp, Sweatband, Top Pad, Chin Strap And Suspension System Also Sold Separately