I have 8 hats that I have made using CMI hats that Nick donated (Thanks Nick).
They will protect your head from nails and minor head bumps while in an attic or similar.
They are CMI hats so I can only send them to CMI’s.
All I need is a pledge of $25 or a return after you try them for a while ( A few inspections).
If they work well I will also start to make them with INACHI hats (With Nick’s help) and blanks.
These do not have vents in the side ( A little hot) but the final version will.
I have been using one for a while and it works.