If you thought that it only took a solid pair of sneakers to make for a good run, not only would be left behind in the dust, you’d look bad doing it. As experienced runners know, what you decide to wear during your training can make or break your time out there, which is why Nike Running takes it to the next level with their Spring 2013 Women’s Apparel Collection. Accounting for the fact that Spring doesn’t just mean sunny skies, each piece in this collection uses 3D fabric to help create a naturally warming space between you and the clothing without any of the extra bulk or drag other brands offer with their gear. The new technology, which Nike calls Sphere, can be found all of the different styles of pieces, including the jackets, training pants, tees, and hoodie. The entire 2013 Women’s Apparel Collection from Nike Running, which is previewed in its entirety after the jump, will be available in the coming weeks as a nice complement to pieces previewed in their Spring/Summer 2013 Lookbook.