Casual princess clothes- I LOVE this idea for trips to Disneyland when it's not comfy to wear an itchy princess dress all day.
Running Snow White! Complete tutorial on how to do it.
Sleeping beauty running costume!!
Anna "Frozen" Running Costume
you can fly, possible run Disney costume
Merida Brave inspired complete running outfit on Etsy, $110.00
Disney running costume ideas for the half marathon disney-disney-disney.
Sleeping Beauty Disney race running by GroovyBaByActionGear, $29.00
Disney’s Princess Half Marathon 2012 race recap | Washington Times Communities
Ariel. It also comes in a variety of colors for other princesses & villians. Nike Women's Dri-FIT Lined Woven Tennis Skirt - Dick's Sporting Goods