adidas Can't Make up Its Mind on the UltraBOOST 3.0 "Core Black"

We had our first look at adidas's initial UltraBOOST 3.0 "Core Black" design earlier this year, which saw a newly designed heel cage with perforated details. In the most recent unveiling, adidas changed up the design of the "Core Black" rendition once more, opting for a texturized matte black heel counter and a marled dark gray and black Primeknit upper in place of the original all-black makeup. The previous rendition's black leather caging system is replaced by the traditional plastic caging ma...