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

      B Corporation Certified Logo
    • Waterlust is the best!

      Great products, great customer service, great mission! Worth every penny.

      - Michelle Rumbaut, TX

  • Login

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

B Corporation Certified Logo

Waterlust is the best!

Great products, great customer service, great mission! Worth every penny.

- Michelle Rumbaut, TX

Fountain of Youth 4 Inch Shorts

Calculate My Size
Size Chart & Visual Size Guide
Find the best size based on people like you
Imperial
Metric
Age affects how weight is distributed
lbs
ft inches
Add bra info
If you already know your body measurements
Imperial
Metric
inches
inches
Your fit preference
regular
tight
loose
inches
cm
Waterlust Size Hip (inches) Waist (inches)
[XS] Extra Strong 32.5 - 35.5 22.5 - 26.5
[S] Strong 35.5 - 38.5 24.5 - 30
[M] Mighty 38.5 - 41.5 28 - 33.5
[L] Legendary 41.5 - 44.5 31 - 36
[XL] Extra Legendary 44.5 - 47.5 33.5 - 38.5
[2XL] Extra Extra Legendary 47.5 - 50.5 36.5 - 43
[3XL] Extra Extra Extra Legendary 50.5 - 53.5 41 - 46

VISUAL SIZE GUIDE

Explore our models below and the sizes they wear in Waterlust gear. Find the body type you most closely identify with to better understand your best fit.

[XS] Extra Strong
[S] Strong
[M] Mighty
[L] Legendary
[XL] Extra Legendary
[2XL] Extra Extra Legendary
[3XL] Extra Extra Extra Legendary

Erin is a coral ecologist and Program Manager here at Waterlust. She is 4'11" and 110 lbs.

Syriah is a sea turtle conservation biologist. She is 5'7" and 111 lbs.


Laura is a hurricane researcher who loves exploring the ocean as a scuba diver. She is 5'3" and 120 lbs.

Carlee is a shark & sea turtle scientist and co-founder of Minorities in Shark Sciences. She is 5'7" and 145 lbs.

Amani is a co-founder and the CFO of Minorities in Shark Sciences and a shark scientist. She is 5'3", 160 lbs and a 36C.

Meagan is a biologist with a focus on water quality who loves to wear her heart on her sleeve while advocating for marine science and conservation. She is 5'3" and 155 lbs.

Camilla is the Operations Manager here at Waterlust. She loves using her camera to communicate marine conservation issues. She is 5'8", 190 lbs, and wearing an XL short.

Ruth volunteers for citizen science projects on both salt and freshwater fish and spends as much time as possible in, on, or under the water. She is 5'7" and 217 lbs.

Chelsea is a marine conservationist who believes that science is for everybody... and every BODY! She is 5'2" and 230 lbs.

We guarantee you will love your Waterlust purchase, or your money back! If you receive one of our products and are not pleased with it for any reason, we would be happy to take it back in its original form for a full refund or exchange within 60 days of purchase.

No restocking fees and free return shipping both ways for orders within the United States. International orders just need to pay return shipping, if exchanging we'll cover the cost to ship the new item back to you.

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

White sandy beaches may take the spotlight, but Florida is home to 1,000 freshwater springs, the highest density in the world. A birds-eye-view of the forest often reveals a magnificent pool of freshwater emerging from the aquifer below. Jump in and you may experience the coveted feeling of flight as you soar in the air-clear water.

    1. Streamlined pockets on the side of both legs for your phone, wallet, snacks or sunscreen
    2. Fibers mechanically engineered for quick dry, moisture wicking and breathability
    3. Resilient 4-way stretch and recovery for shape retention in and out of the water
    4. 4' inseam with longer length in the back to flatter your curves while keeping you covered
    5. Tag-less, wide waistband for comfort, added security and fold over option
    6. 100% chlorine, sun, saltwater and sunscreen resistant
    7. UPF 50+ sun protection (max rating achievable)
  • 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

Tag us @waterlust to be featured

Advocate Apparel Inspired by the Floridan Aquifer and springs

Florida evokes daydreams of white sandy beaches and palm trees – but perhaps the most magnificent water in Florida lies just out of sight. In the Sunshine State, water fills the limestone cavities of the Floridan aquifer beneath our feet. This is the source of drinking water for 92% of Floridians. But this water is not always hidden - where it finds its way to the surface, it forms marvelous freshwater springs, which support not only human life in Florida but also incredibly diverse and unique aquatic ecosystems. In fact, Florida is home to the highest density of freshwater springs in the world – more than 1,000 of them dot the karst landscape of the sunny peninsula.

Unfortunately, increasing development and growing pressures on water resources are having negative impacts on Florida’s springs. Over the past 15 or 20 years, Florida’s burgeoning population has had a plethora of consequences for the springs, namely decreases in flow due to over-pumping and a transition from native underwater grasses to nasty algae. Nitrate levels in the springs have skyrocketed and ecosystem dynamics have changed as food webs are altered.

5% of sales from your purchase of this product are donated to the Alachua Conservation Trust

"Thanks to the support of Waterlust and its customers, ACT's Young Leaders for Wild Florida Program continues to successfully provide youth education on freshwater springs protection and land protection to Florida's future generations of leaders. Partnering with Waterlust on these efforts is both rewarding and critical to conserving Florida's precious natural resources."

Tom Kay, Executive Director

the Alachua Conservation Trust

Customer Reviews

Based on 37 reviews
95%
(35)
3%
(1)
3%
(1)
0%
(0)
0%
(0)
J
Jordan Stock (Baltimore, MD, US)
I want more!

I know the overconsumption of goods is damaging our ecosystems but I would buy every single one of these designs. I love the pockets and the way the fit keeps in my stomach. The material is sturdy and dries quickly.

T
Tera (Davis, CA, US)
Great shorts

Love them. Fit well, two side pockets, quick drying, and a great color.

D
Darian (Hamburg, HH, DE)
Super comfy!

I actually got two pairs of these 4"shorts from this brand (so this review is for both, as only the color differs), they fit perfectly, have the perfect length for me, and I love that they have a high-waist cut. It just sits better in my opinion, I don't have to worry about anything slipping down. The designs are cute as well. I am 5'2, roughly 130lbs and wear a size M for reference.

R
Rebecca Cohen (Austin, TX, US)
Great shorts

These shorts are durable, comfortable, and very flattering. I’m 5ft5in, 135lbs and the medium fits perfectly. These shorts and matching top are the first swim suit I’ve owned that i actually look forward to putting on!

C
Colleen Taylor (Stony Creek, VA, US)
Love them!

These are thicker than expected - very well made! Love the colors, the feel, and the pockets!

S
Sigrun (Brisbane, QLD, AU)
Love it

When I unpacked it I was struck by the quality materials and workmanship. It does fit well - I ordered small at 60kg and 167cm tall.
I love everything about it.

Search

Top suggestions

    x

    ×

    Pay a small fee now for free returns later.

    We don’t offer free shipping on returns or exchanges for a reason. Transporting items in planes, trains, ships, and trucks is one of the biggest environmental costs of our business, and we think it’s important that our policies reflect that. We offer two options: 1) pay up front and you can send your order back to us within 60 days at no extra cost or 2) wait until you receive your order and pay our $9.95 flat-rate return postage fee if you decide to send something back later on.