We're in business to build a more sustainable world by bringing environmental science into your life in creative ways.


Spongebob Bikini Bottom ID Tee

Educational resources & donation included with every purchase. Learn more.

Made in California from 100% ringspun organic cotton and screen printed using algae ink (water-based ink using black bio-based algae pigment), providing a soft hand feel and excellent wash durability. Algae Ink is a net negative carbon technology, with each bucket of ink sequestering the same carbon as two trees!

SpongeBob was created by marine biologist Stephen Hillenburg, who used art to teach kids about the marine species and ecosystems around them. With its origin in marine science education, the series has always had a deep-rooted connection to the sea. This connection led Paramount and Nickelodeon to launch SpongeBob SquarePants: Operation Sea Change, a global conservation and sustainability initiative to help protect the home of the very creatures that inspired Bikini Bottom. We created this collection in partnership with Paramount Consumer Products to support the Operation Sea Change initiative as well as advocate for the importance of art in inspiring environmental stewardship.

Global Organic Textile Standard (GOTS) Certified, the worldwide leading standard for organic textiles like cotton. GOTS certification ensures our cotton is pure and ethically sourced and is made without chemical pesticides, forced labor, child labor, or unfair wages.

UPF 50+ Sun Protection (Max Rating Achievable)

100% Fade-Proof From Chlorine, Sun & Saltwater

Anti-Microbial = Smell-Resistant

Fibers Mechanically Engineered For Quick-Dry & Moisture-Wicking

Made From Recycled Materials

Waterlust in the wild

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Fast, free shipping

We ship orders same or next business day. Free priority shipping on all U.S. orders over $150, free express international shipping over $300.

Packaged responsibly

We lovingly prepare each one of our orders for its journey to you using the best packaging materials we can find with the least environmental impact.

Free returns + exchanges

Free within the U.S. International orders must pay return postage. Exchanges orders can be placed immediately with an instant credit.

Happiness Guaranteed

We stand behind every product we make. If you have a problem, we will solve it with the relentless determination of a salmon swimming upstream to spawn.

Advocate Apparel Inspired by the Bikini Bottom Ecosystem

The SpongeBob SquarePants creative team did such an incredible job designing the ecosystem of Bikini Bottom with its distinctive bright colors, iconic flower-shaped clouds, and buoyant mood that our team wanted to embody it when designing the SpongeBob Bikini Bottom collection. Although a fictional world, Bikini Bottom and its citizens are inspired by real underwater critters and places, many of which can be found in the intertidal zone.

Besides being huge fans of the show for its creativity, positivity, and forward-thinking themes, we love SpongeBob SquarePants as an example of how art can support environmental science and conservation. Art can provide an opportunity to instill emotion and humanity into science communication while maintaining its scientific integrity. Art can speak for animals, ecosystems, and communities who may not be able to speak for themselves. Art can transform apathy into enthusiasm, enthusiasm into action, and action into change. And in special cases when an artistic expression becomes widely popular like the animated adventures of a charismatic sponge, it can inspire an entire generation.

10% of profits from your purchase of this product are donated to the Ocean Institute

“Waterlust blends their passion for the ocean with an artistic expression from which others can enjoy and learn. This model embodies the spirit of one of our former marine science instructors, Stephen Hillenburg. We’re honored to be a beneficiary of Waterlust’s funding program to foster experiences that will develop the next generation of ocean defenders…and may even kickstart the next Waterlust or Hillenburg!”

Dr. Wendy Marshall, President & CEO

the Ocean Institute

Customer Reviews

Based on 25 reviews
Sabina (Greenport, NY, US)

Spongebob Bikini Bottom ID Tee

Rowan Wilson (Chico, CA, US)
My new favorite shirt

This shirt is so awesome! It's soft, a flattering color, and the graphic is so well done. Plus who doesn't love a shirt made with 100% US cotton and that's printed in ink made from algae? I'm a science teacher too, so I just love the identification chart.

One note I will make, it is not a fitted tee. I ordered an XS and am very happy with the way it fits on me, but it definitely is a little baggier. Not a tshirt I could tuck into high waisted pants or shorts, but super cute with the regular waisted options.

Bottom line: If you like it, buy it!

Laiza Faria (Los Angeles, CA, US)

Spongebob Bikini Bottom ID Tee

Marissa Borgese (Forest Park, IL, US)
Very fun & soft!

Such a fun design and the shirt itself is very soft!

Alison Pinion (Akron, OH, US)

Spongebob Bikini Bottom ID Tee

Elizabeth Birdwell (Cottage Grove, OR, US)
Great shirt!!

Soft and feels high quality!! Accidentally ordered the wrong size so I emailed and they fixed it for me before it shipped, no problems at all, love that some of the money goes to charity. I religiously watched Spongebob growing up haha