The Real Madrid away jersey for the 2011/2012 season was produced by Adidas. Here is a description of the Real Madrid 11/12 away jersey:
The jersey had a unique and distinctive design featuring a dark blue or navy base with a bold and eye-catching neon green (almost fluorescent) horizontal stripe running across the chest. The stripe typically extended from one side of the chest to the other and was often accompanied by thin white or black accent lines.
The Adidas three stripes were usually present on the shoulders, and the rounded collar and cuffs were in a solid color, often matching the base color of the jersey. The sponsorship logo, typically Bwin, was prominently displayed in the center of the jersey. The Real Madrid crest was on the left chest, and the Adidas logo was on the right chest.
