Nike Air BW Gen II (South Africa Edition)New developments and innovations never cease at the Nike laboratory, and the Nike Air BW Gen II is a perfect example of that work. Featuring Nike's new three-layer upper "Torch," developed to minimize the use of leather and create a more breathable, moisture-wicking lightweight sneaker, they have transformed the Nike Air Classic BW into a top-performing sneaker for the modern age. And, they look fresh too.