I've added the cropped cardigan to many looks in the past, but I've yet to layer with this particular article -- until yesterday.
The cardi is brand aerie from American Eagle -- purchased over 5 years ago. I paired the blue cardi with a blue and white striped button down from A & F, layered over a white lace cami. The wide-leg trousers are from Wet-Seal; and I finished the look off with a pair of Bamboo peep-toe booties from Ross. Fun and easy look to pull off.