The Alexander Wang t-shirts have a mini pocket, unfortunately LC wears her scarf so we can't see it. But could be the classic black t by Alexander Wang
i know this sounds silly, but for the jeans i have a pair of charlotte russe dark denim skinny jeans that look a lot like that if you are on a budget...
I don't own this shirt, but I own a couple of other David Lerner t-shirts (the cap sleeve and the button-down), and the organic cotton they are made of is so soft and comfy! I practically live in them on the weekends. They are sized very generously, so size down if you want a closer fit.