Steel Wing's cutie mark is also used as the symbol for The Steel Wings. It's on all their jackets.

The Steel Wings are a very close-knit group of friends who feel more like family. They enjoy showing off and just generally having a good time. All members are awarded a denim jacket with Steel Wing's cutie mark on the chest (after they've been officially initiated, of course). This jacket then becomes that pony's identity. They modify and customize it to their own desire.

The leader of The Steel Wings (current being Silver Haze) is the only one with the leather jacket with a large embroidered Steel Wing's Cutie Mark on the back. As she's only the second leader, the tradition is only just started, but it's now tradition for each leader to add something to the jacket before it's passed down