A hat, that allows the wearer who is attuned to it to jump in as an action. The inside is a demiplane, with a 10 x 10 foot space. While inside the demiplane, you can see outside the hole of the hat into where the hat is. You can use an action to jump out of the hat as well.

If the hat is destroyed while something is in the demiplane, they are sent somewhere that is 1d8 miles away from the hat's position.