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


SpongeBob Bikini Bottom Leggings

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

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.

    1. Raw hem and internally stitched bar-tacks allow for customizable inseam lengths of 31”, 29”, 27”, 25”, and 23”. Crop to 7/8ths length or customize for your height. Learn how here.
    2. Streamlined pockets on the side of both legs for your phone, wallet, snacks or sunscreen
    3. UPF 50+ sun protection (max rating achievable)
    4. Fibers mechanically engineered for quick dry, moisture wicking and breathability
    5. Resilient 4-way stretch and recovery for shape retention in and out of the water
    6. Tag-less, wide waistband for comfort, added security and fold over option
    7. 100% chlorine, sun, saltwater and sunscreen resistant
  • Our signature fabric is sleek, soft, and luxurious, while strong, substantial, and resilient. It’s got a gummy, supportive, and smoothing stretchiness you’ll love, comfortably hugging you in all the right places.

    88% Repreve® RPET (recycled polyester made from post-consumer plastic bottles), 12% spandex

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 8 reviews
Patricia Rowe (Las Vegas, NV, US)
Sponge Bob - Rocks

I love these swim pants. I paddle board and they stay up. I also love the phone pocket.

Nicole (Santa Monica, CA, US)
Just what I was looking for!

I thought I would have a much harder time finding quality swim leggings but I discovered this brand right away and after continuing to search they were the best option for multiple reasons. The print/color of these leggings is so vibrant! The quality feels good and they are very comfortable. I appreciated that I could cut them to the length I wanted which was relatively easy to do, but I am glad that I own a pair of fabric scissors which helped with the quality of the cut I made. I love that these are made from recycled materials, donate to ocean research, are chlorine resistant, have high UPF rating, a gusset crotch, and pockets! They hit me right at/just above my belly button which is good enough but I do wish these had a higher waist. I have not yet worn them in the water but I can't wait to do so! I'm happy that I can still look good while protecting my tattoos and skin from the sun. Their customer service is also very responsive and helpful.

Allegea Marquez (Newport News, VA, US)
SpongeBob leggings

Amazing quality and great customer service! Arrived quickly too!

Megan Cuevas (Seattle, WA, US)

SpongeBob Bikini Bottom Leggings

Stephanie tittle (Incline Village, NV, US)

Can I send a photo?
I love these bikini bottom sponge bob leggings!
They fit amazingly well, slightly different than my last pair.
I’m a proud owner of 2 full swim suits (whale shark and turtle), the spring leggings and a shark hoodie.
When I can afford it I may buy another pair!

These are incredibly functional leggings for all season swimming, mat and sup yoga, ( I taught my online classes in them today), trail running and fun fashion.

Thank you

Matthew Loftus (Sandy, UT, US)
Birthday Gift

The good news pants aren’t square either.