Based on the leaked design of the other jersey, this is my guess on our own Stadium Series jersey : r/penguins
Official Penguins Reverse Retros!; Ranking 5 Best & Worst New Jerseys
Penguins Bring Back 90s Look for New Third Uniform – SportsLogos.Net News
Game Preview: 03.04.21 vs. PHI
Did a Penguins fourth jersey just leak?
Report: Penguins to add a new retro jersey - PensBurgh
Another apparent jersey leak leaves fans not so happy about Stadium Series threads - Article - Bardown
Penguins Reverse Retro Jersey for 2021 : r/penguins
The Strangest One Of All: Third Jerseys Galore
Penguins Bring Back 90s Look for New Third Uniform – SportsLogos.Net News
Game Preview: 04.25.21 vs. BOS
Pittsburgh Penguins on Twitter: "Third jerseys, activate! We're goin' gold for weekend home games this season. 2019.20 third jersey schedule ⬇️ https://t.co/9KvtHJwAmq" / Twitter
icethetics.com: Penguins reveal throwback third jersey for 2021-22