Tesla and Space X founder Elon Musk has a new invention and it's just a boring hat.
Yep, it's quite literally just a black hat with "The Boring Company" written in white.
Musk even referred to the product as "the world's most boring hat" when showcasing it on Twitter.
The hat, which sells for $A25, features a velcro strap and is one-size-fits-all - something that appealed to a lot of people.