I designed an earwarmer so that my son could wear his ball cap in the winter and still keep his ears warm. I wanted one for myself because at the time I had long hair I wore in a ponytail all the time.
But, regular baseball cap earwarmers were uncomfortable because my hair had no where to go!
I figured there are others out there the same way.
This pattern makes a Cap Earwarmer that has a band that goes under the bill and over the bill. That way it keeps the hat in place.

Size: One Size Fits Most Adults

(Note: I found that using different yarns
Even though they were all rated #4 worsted I got
Different sizes of Ear Warmers. Please Keep
This in mind when you make yours and adjust
Accordingly.)

Supplies Needed:
I (5.5mm) Hook
1 skein of yarn in your choice of color.
I used the following yarns for my items:
Red Heart Super Saver in Camo (5oz, 244 yds)
Red Heart Super Saver in Black (5oz, 244 yds)
I Love This Yarn in Neon Orange (5oz, 255 yds)
You can get several Ear Warmers out of one skein of yarn
Yarn Needle
Scissors
Place Marker of piece of scrap yarn