Men's Quantum Long Sleeve Tee - Ivy Green

You're looking at the Quantum LS Tee from Purple Mountain Observatory. The perfect shade of green... nice and chunky cotton fabric... but what are all those dates about on the back that look like they're taken from an old tour t-shirt? Well, it turns out they're actually the dates of historic asteroid sightings at an observatory in the mountains of China. The observatory's name? The Purple Mountain Observatory. It all becomes clear. Sort of.