2,000 years before Rainbow Dash or Lightning Dust, there was Shooting Star—the original speedster daredevil, and originator of the sonic rainboom myth.
If you're wondering how her hair can be that shape, it's actually kinked in a 3D 'Z' shape. Whether you choose to draw it as a solid shape or with folds is up to you.
I know it looks like she's got a bit of a mullet going on here, but she looks better in her Valkyrie armour.
This is a minor character related to my pony-fiction, The Tale of Two Sisters.