Your search for "hard hats" revealed the following:

751120 SPEEDGLAS 100V 3/8-12 WELDING SHIELD BLACK

The 3M™ Speedglas™ 100 Series Welding Helmet helps protect welders from flying sparks and airborne debris, and its auto-darkening filters guard against the high-intensity light of MIG, TIG, and stick welding. With an optional hard-hat adapter, this helmet is a great choice for welders starting off their careers, tradesmen, and DIYers.

3M™ Versaflo™ M-Series Leather Shroud M-449, 1 EA/BAG

The M-449 is a leather shroud for the 3M™ Versaflo™ M-400 Series Helmets. An M-444 Inner Shroud (sold separately) must be zipped into the outer shroud.

3M™ PELTOR™ Boom Microphone MT53V/1, 20 ea/Case

The 3M™ PELTOR™ Boom Microphone MT53V/1 enables clear communication when using a 3M™ Versaflo™ M-300 Series Respirator Hard Hat. The MT53V/1 Boom Microphone is compatible with the MT53 series 3M™ PELTOR™ Protective Communication Headsets. This noise-cancelling speech microphone enables clear communication in noisy environments.

3m Elevated Temperature Cotton + Para-aramide Front Helmet Cover, FC1-GR, Gray, 60 EA/Case

3m Elevated Temperature Cotton + Para-aramide Front Helmet Cover, FC1-GR, Gray, 60 EA/Case3M™ Elevated Temperature Cotton + Para-aramid Front Helmet Cover FC1-GR is made from a high quality fabric material capable of reflecting some radiant heat and withstanding sparks and splatter.

3M™ Versaflo™ M-Series Flame Resistant Outer Shroud M-447, 1 EA/Case

Made from Nomex®, the M 447 Outer Shroud is a flame resistant outer shroud for 3M™ Versaflo™ M 400 Helmets.