A type of hat that gives the rear of the hat a much cleaner look. Instead of being adjusted by a strap or snap, it is adjusted with a zipper. The zipper may very well be one of man-kinds greatest inventions next to duct tape. The zipper may be easily adjusted for personal comfort. Overall, better than strap and snap backs.
The area near your dick/VJ where your zipper bulges up usually when you sit down and makes it look like you have a HUGE erection. this is for both men and women but if your a woman and your not lady gaga nobody will think you actually have an erection so really only men have a problem with this.