Nike Seitiro Hi-Vis is the official ball of the 2011-2012 Premier League winter matches. There are small changes here, right? Of course. This ball is different from the usual Nike winter balls. The main difference is the replacement of a single-color purple pattern with a complex pattern that exactly repeats the shape of the pattern on the summer ball. All technological characteristics of a winter ball are absolutely identical to those of the original ball. Nike Seitiro Hi-Vis is still one of the most stylish and comfortable winter balls ever.