Here's Where to Buy That Awesome Hellfire Club Shirt from 'Stranger Things 4'

On a hot summer day, try the official Hellfire Club Logo Tank Top for $26 or the T-Shirt for $23. And for the colder months, you can opt for the Logo Sweatshirt ($45), the Logo Zip Hoodie ($48) or the Pullover Hoodie ($48).

For those who've yet to see the most recent season, the Hellfire Club was introduced as a Dungeons and Dragons-themed club at Hawkins High School, where Eddie Munson serves as the leader. In addition to Dustin and Mike, members include Jeff, Lucas and Erica. And for one of their campaigns, called the Cult of Vecna, Eddie is the Dungeon Master. But it's just one of several storylines in this rollercoaster ride of a season. Set nine months after the finale of season three, Eleven (AKA Jane) struggles to adjust to life without powers. Plus, Hawkins residents face an even greater threat that's connected to the Upside Down.

So, if you want to really immerse yourself in the Stranger Things universe, snag yourself a Hellfire Club tee (and binge-watch the new season).