Boro fans can bid on match-worn shirts and support the Royal British Legion.
The poppy-adorned shirts were worn in the 1-1 draw against Bristol City at the Riverside Stadium, Michael Carrick's first home match in charge of the club.
A full complement of player shirts are available in the auction, as is a shirt signed by the first team squad, and a limited-edition framed shirt.
Bidding will continue until 4pm on Saturday 19 November, with funds raised for the Royal British Legion's poppy appeal and its vital work supporting the Armed Forces community.
A second set of shirts, worn in Boro's 2-1 away win at Norwich City, has been donated by the club to a local Armed Forces regiment.