They are clean.

They are sharp.

They are classic.

And they hold a lot of history. Winning history that is.

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The Steelers unveiled their Throwback Jersey on Wednesday at a press conference at Heinz Field, and if the goal was to wear something filled with good vibes, mission accomplished.

The team will wear jerseys with block numbers and letters when they host the Cleveland Browns on Oct. 28 at Heinz Field, a throwback to the 1978 and 1979 seasons when the Steelers won Super Bowl XIII and XIV. With the team set to celebrate the 40th Anniversary of Super Bowl XIII this year, the third of four won during the 70s, the timing is perfect.

"We are coming up on the 40th Anniversary of Super Bowl XIII and next year will be the 40th anniversary of Super Bowl XIV, so we thought it was a good time to celebrate those teams and those years by bringing back that jersey and that uniform," said Steelers President Art Rooney II. "We're excited about being able to celebrate what was a great time in Steelers history and celebrate those teams."

The block number jerseys were among the most popular ones in team history, and with the success the Steelers had while wearing them, you can't go wrong.

"I think our fans even today, even some that weren't born back then, they understand the history," said Rooney. "Celebrating those years and championships, and certainly those players that were part of those years, will be a fun time for all of our fans to remember one of the greatest dynasties in NFL history. It will be fun to get a lot of those players back to help us celebrate."

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Franco Harris, who wore the jersey proudly while winning Super Bowls, loves the fact that the team will be honoring and celebrating that time in team history.

"There is always that connection with Steelers team," said Harris. "We always make sure that spirit is connected. To have this jersey be a part of it, it makes us feel good that there is a connection to our history, what it means. They say the standard is the standard. This is what we stand for."

"It shows the history of the Steelers," said Pouncey. "To bring back the old school fashion and make it a new school thing is really enjoyable and I like it a lot."