Game worn during Bryce Harper's Opening Day home run performance on March 27, 2025, this pair of Under Armour cleats carries dual signatures from the Phillies superstar and comes backed by Fanatics and MLB Authentication, the latter confirming the cleats were worn during that specific game. Facing his former organization, the Washington Nationals, in the season's ceremonial opener, Harper delivered a home run in a matchup carrying obvious storyline weight given his history with both franchises. Opening Day memorabilia carries built-in collector appeal each season, but a date- and event-specific pairing — first game of the year, notable opponent, documented home run performance — elevates this piece well beyond a standard game-worn offering. Harper, a two-time NL MVP and one of the most recognizable faces in the sport since his consensus first-overall amateur status, continues to command strong demand across all memorabilia categories, with game-worn footwear from significant, verifiable games representing some of the most sought-after items in his collector market. The dual signature adds a layer of direct player certification on top of the MLB Authentication tagging already affixed to the cleats. For Phillies collectors and Harper specialists alike, this recent, precisely documented piece offers rare specificity: a named date, opponent, and performance, all verified and signed.