The upper of the Air Tech Challenge 2 is adorned with black and Obsidian tones, showcasing a blend of suede and neoprene materials that have been treated with a waterproof coating. Complementing this design are waxed laces that enhance the eye-catching appeal of the eyestay. In contrast to earlier versions, this model introduces a more understated color scheme. Nevertheless, it retains its signature performance advantages such as the prominent Air unit located in the heel.