Suspension system incorporates exclusive patented SecureFit™ Pressure Diffusion Technology. Comfort pad on back of suspension is designed to distribute force and increase ease of wear. Customize your fit with multiple levels of height and head-shape adjustments. Premium washable and replaceable sweatband with moisture-wicking material is designed to help keep workers cool and dry. Uvicator sensor lets wearers know when to replace hard hat due to UV exposure.