The Center is currently closed to the public for renovations, but we are still hard at work saving animals. Shop online to support our life-saving work! Due to precautions we are taking to keep our team safe and healthy, orders may take slightly longer than usual be processed.

Gray mid-calf socks with 9 sea lion profiles in white, gray, black, brown, and tan.

Decade Design Socks

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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.


  • Made in the USA.
  • Crew length (mid-calf), gray.
  • Adult sock size 9-11, (approximate shoe sizes: men’s 6-8.5/women’s 8-10.5)