It's MAC, so it's finely milled and long lasting, with minimal glitter fallout. It actually lasts all day on my browbone without primer, and nothing lasts all day on my skin. For serious. Of course, since it's MAC, it has to be limited edition (it's actually a re-release from their Neo-Sci Fi collection, but still). Which means you need to hop over to maccosmetics.com or your local MAC store now.
Femme Fi shadow, $14.50 at maccosmetics.com