Looking for a family-friendly activity? Visit The Marine Mammal Center's hospital and visitor center in Sausalito, California! Tickets are free but must be reserved online in advance. For important health and safety policies and to reserve your tickets, see MarineMammalCenter.org/visit.

Black crew-neck sweatshirt featuring design with 10 sea lion profiles in white, gray, tan, and brown on front. Text "The Marine Mammal Center Sausalito, California" beneath image.

Decade Crew-Neck Sweatshirt

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Limited Edition!

Our one-of-a-kind Decade Design, initially created in honor of The Marine Mammal Center’s 10th anniversary, remains our most popular design over 30 years later. Featuring the side profiles of ten regal sea lions, this classic is sure to draw compliments.

Also available as a black hooded sweatshirt.


  • 90% cotton, 10% polyester.
  • Printed by a local small business in San Rafael, CA.
  • Crew-neck sweatshirt, black.
  • Adult unisex sizes S-XXL.
  • Note: this sweatshirt tends to run slightly large. Size down if you prefer a tighter fit.