Willis Tower was Sears Tower for most of its existence in Chicago since 1973. The 110-story, 1,450-foot skyscraper was the tallest building in the world until 1998 and its Skydeck observation platform attracts more than a million people every year.

The classic comfy zip-up, featuring air jet spun yarn for a softer fleece with reduced pilling. Once put on, it will be impossible to take off.

.: Classic fit
.: 50% Cotton; 50% Polyester (fibre content may vary for different colors)
.: Medium heavy fabric (9.8 oz/yd² (279 g/m²))
.: Sewn in label
.: Runs true to size