River's boots have always created quite a stir. Though, most of the time, she's not even wearing them...
More after the break...
The screencap above is from Safe, worn with her pink sweater.
Here's a shot from Our Mrs. Reynolds (with one of her peasant tops):
And, of course, in the Train Job, with her yellow and black:
And a promo for Firefly (shown here with her Red and Brown):
Now, in the movie Serenity, we get a softer version of the motorcycle boot.
Some promos (more on the costume):
And some screencaps (her Maidenhead dress is worn here):
My Photobucket Album for River.
Serenifly Costumes site for River.