They are custom Bauer Vapor 1X skates with his name and number etched on the skates. It comes with a letter of authenticity. Original sales tag is still on the skates.
These can be verified with MLSE store inside the arena. These look much better as it actually has Auston Matthews name etched in the skate blade. The item "Auston Matthews Game Worn Skates 2018-19 Bauer Vapor 1X Rare" is in sale since Wednesday, June 16, 2021. This item is in the category "Sports Mem, Cards & Fan Shop\Fan Apparel & Souvenirs\Hockey-NHL". The seller is "sportscardsgalore2010" and is located in Markham, Ontario. This item can be shipped worldwide.