Thunder Fans went out Wednesday night to buy late-night merchandise at two Oklahoma City metro stores, following OKC's win that advanced them to the NBA Playoffs.

Thunder fever is high this week! If you snagged tickets to Wednesday's game, you will get a Thunder t-shirt at your seat, and if you've ever wondered how they make so many t-shirts for each game, News 4 got an inside look.

That's a hilarious and accurate way to put it. The Thunder plays defense like they can read each other's minds. When one player rotated over to contest an outside shot, the next player was already on the move to the next guy. Edwards had no room to work against OKC all series.

This game follows Monday night’s close win over the Timberwolves in Minnesota, which gave OKC a 3-1 series lead. If the Thunder win Wednesday’s game, they will advance to the NBA Finals. Wednesday's game is at the Paycom Center. Doors open at 5:30 p.m., and tipoff is set for 7:30 p.m.

Thunder fans were greeted with another custom-made shirt for Game 7 between the Oklahoma City and the Denver Nuggets.

The Oklahoma City Thunder are headed to their first NBA Finals as a franchise since 2012 after eliminating the Minnesota Timberwolves, 124-94, in Game 5 on Wednesday night. OKC will face either the Pacers (who lead the Eastern Conference finals 3-1) or the Knicks in the Finals,