ESS Semi-Permanent Helmet Mounting Brackets for Innerzone Goggles Black. ESS Helmet Mounting Brackets 7400201 are semi-permanent mounting brackets attach to the brim of nearly any structural fire helmet no drilling required. Once installed the easy-to-tighten thumb screws secure the goggle straps to the helmet allowing the user to store the ESS goggles on the front or rear of the helmet. NOTE: Recommended for use on helmets without face shields. Key Features of ESS Semi Permanent Helmet Mounting Brackets 740-0201: NFPA Compliant 2-Piece Strap System ESS Semi-Permanent Helmet Mounting Brackets 7400201 is compatable with: ESS Innerzone 1 Goggles 740-0264 Specifications for ESS Semi-Permanent Helmet Mounting Brackets: Manufacturer: ESS Color: Black Package Contents: ESS Semi-Permanent Helmet Mounting Brackets ESS 740-0201: Semi-Permanent Helmet Mounting Brackets for Innerzone Goggles Black