My friends call this my "Hunter's Hat."  I am not a hunter, but I do lead hikes and want to be seen by those in the fast group ahead of me, and the slow group behind me.  The bright orange really stands out and is very obvious when hiking across our winter desert.  It's adjustable for most any head size and is lightweight.  The bill and top are stiff, though, so it's not as comfortable as perhaps a runner's cap of the same color brightness.  I like the reflective silver on the sides and back.