If you purchased Star Wars: The Force Awakens through iTunes, an all-new bonus feature has been made available. The new footage focuses entirely on Rey, with a particularly insightful interview from costume designer Michael Kaplan about the “why” and “how” behind the character’s look.

Here’s what Kaplan had to say about the process:

We knew she was going to be in a world of men doing things like climbing and dealing with rocket parts and living this Spartan life, so we had to make her practical, but we also wanted a glimmer of femininity about her. I also knew there were going to be sandstorms and dust, so I wanted the character to be in light colors. It also felt right for her emotionally and for the desert. It also felt very Star Wars especially when you look back at Luke and Leia.

Kaplan goes on to reveal 25 copies of her outfit were made because Rey actually wears the same costume until the closing shot of the movie. Check out our review of the Blu-ray release, which includes plenty of cool extras for Star Wars fans.