It's a logo of Santa's hat. On the bottom is a long rectangle curved upwards slightly representing the bottom frill. Then out of that comes the cap part with folds over slightly on top to the right with the circular ball at the end.
This Santas Hat icon is made in flat color style
. This format was developed by Icons8 designer team and became immensely popular for use in web and mobile applications. Feel free to download this icon in PNG format for free, or unlock other formats for $5. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 5,900 icons, all in the same style and quality.