The Stranger Things x Air Tailwind 79 QS 'Upside Down' sneaker, released in August 2019, was strategically timed to give fans ample opportunity to immerse themselves in the show's storyline. Featuring an outer layer in a subtle Sail-toned hue, this edition offers a unique twist - it can be burned away to unveil a concealed design underneath. Notably, the insoles of these sneakers are adorned with the phrase 'Suzie -- do you copy?' alongside detailed sketches of the iconic machinery that played a central role in the season. However, the most intriguing aspect lies beneath the surface. Once the outer layer is stripped away, a hidden Russian code, integral to the plot, is intricately printed in alternating Cyrillic and English lettering.