Product OverviewThis Professional non-vented hard hat is ideal for those that work around live power installations. Removing the vents eliminates the risk of cables passing into the helmet and causing shocks.This helmet features a wheel ratchet, providing a refined level of control over the fit. You can easily adjust it with one hand, making it a breeze to remove and put on your helmet. The internal cradle on the top of the wearer's head is constructed from a soft yet strong fabric for added comfort.Features Wheel ratchet adjustment for easy fit. Soft fabric internal cradle for comfort. Universal accessory slots for added versatility. EvoSpec compatibility for job-specific requirements. Technical Specifications Specification Measurement Type Non-Vented FAQIs this helmet suitable for electrical work?Yes, it is designed for use around live power installations.Can I adjust the fit with one hand?Absolutely, the wheel ratchet allows for easy one-handed adjustments.Does this helmet allow for accessories?Yes, it features universal accessory slots and is EvoSpec compatible.