Suspension system incorporates exclusive patented SecureFit Pressure Diffusion Technology. Comfort pad on back of suspension is designed to distribute force & increase ease of wear. Customize your fit with multiple levels of height & head-shape adjustments. Premium washable & replaceable sweatband with moisture-wicking material is designed to help keep workers cool & dry. Uvicator sensor lets wearers know when to replace hard hat due to UV exposure. Hard Hat Style: Full-Brim Hat; Material(s): HDPE; Adjusting Method: Ratchet.