Own a swim cap signed by Michael Phelps, the most decorated Olympian in history, verified authentic by Beckett Authentication and finished with a sticker on the item itself.
Phelps won 28 Olympic medals, 23 of them gold, racing across four Games from Athens to Rio. Few athletes in any sport have matched his combination of dominance and longevity in the pool, and his cap remains a recognizable piece of that run.
Michael Phelps Signed Swim Cap
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Learn more100% of the Net Proceeds (as defined in our Terms and FAQs) of the Hammer Price will go to a donor-advised fund (“DAF”) administered by Our Change Foundation, a third-party charitable entity contracted by Charitybuzz, which will then grant the funds, less fees, to Cal Ripken Sr Foundation Inc.