Usually when I go for a more casual look, I look for simple pieces that have some nice detail and depth. I'm wearing a sparkly knit crop tank that, unfortunately, you can't see the iridescence. I paired the top with a light wash boyfriend cut jean that I distressed and hologram accessories.
Here is a close up of the knit crop tank. Its a great piece for the season and adds a little dazzle to any casual or dressed up look!