Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! Some bags are trendy for a season. Others quietly become the kind you reach for every single day because they make everything in your closet look a little more polished. Nicole Kidman’s latest black purse falls firmly into the second category — timeless, versatile and somehow able to elevate even a simple jeans-and-sneakers outfit. The Oscar winner was spotted in New York City on July 30, wearing a crisp white button-up layered under a gray blazer with classic blue jeans and Adidas sneakers. Tucked under her arm was an…