The Marine Mammal Center's hospital and visitor center in Sausalito, California is reopening to the public on June 3rd! Tickets are free but must be reserved online in advance. For important health and safety policies and to reserve your tickets, see While you wait for your visit date, shop online to support our life-saving work!

White infant onesie with a harbor seal's face and TMMC's logo draped over a harbor seal statue.

Harbor Seal Onesie

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Swaddle your sassy infant in this one-of-a-kind onesie! Featuring a cheeky photo of former harbor seal patient Brandi sticking her adorable tongue out at her caretakers, this infant onesie is sure to put a smile on anyone's face.


  • 100% cotton.
  • 3 snap-button closures along bottom.
  • Infant sizes 6mo, 12mo, and 18mo.