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This guide to non-toxic flip-flops and summer sandals will help you avoid hidden toxins found in most conventional footwear.
From safer materials to sustainable brands, we’re sharing everything you need to keep your feet (and your health) happy all summer long.
Picture this, it’s a gorgeous summer day and you’re lounging by the pool, strolling on the beach, or running errands around town.
When you envision this scenario what’s on your feet? Chances are, it’s a pair of your trusty sandals!
They’re comfortable, easy to slip on and off, and perfect for the hot weather. But did you know your favorite summertime sandals might be toxic?
As I was doing some research for my own family, I stumbled upon some shocking information: many popular flip-flop brands contain toxic chemicals that can be harmful to our health and the environment.
Just like workout clothes, raincoats, and even swimsuits, your flip-flops might contain anything from carcinogenic compounds to endocrine-disrupting chemicals.
Turns out these seemingly innocent sandals can be laden with some heavy-duty health threats.
If you’re like me, you want to feel good about what’s on your feet. And it’s more than about how your flip-flops look, it’s about what your flip-flops are made from.
If this sounds like you, you’re in the right place. In this guide we’ll cover:
- The hidden toxins are found in popular sandals and flip-flops.
- Why hot, sweaty summertime feet are at risk of absorbing more chemicals
- The difference between eco-friendly and non-toxic sandals
- My top picks for the best non-toxic flip-flop & sandal brands
The great news is there are plenty of safe, non-toxic summer sandals out there.
So, let’s kick off our shoes and take a closer look at the hidden dangers that might be hiding in your favorite pair of flip-flops so we can make better choices for ourselves and the planet.
Why Hot, Sweaty Feet = More Toxin Absorption
We often think of our skin as a barrier, but it’s more like a sponge, especially when warm, damp, and in direct contact with toxins.
When wearing flip-flops made with PVC, EVA foam, or synthetic rubber, you’re practically marinating in endocrine disruptors like phthalates, BPA, and PFAS.
Here’s how these toxins enter your bloodstream.
During summer months, heat, friction, and sweat open your foot pores and increase blood flow.
Since flip-flops are worn barefoot your sweat acts as a carrier, creating a direct pathway for these harmful substances to enter your body into your bloodstream.
In hot weather, these materials also off-gas more rapidly, so you are also at risk of inhaling these toxic chemicals in addition to absorbing them dermally.
The Difference Between “Non-Toxic” & “Eco-Friendly”
When shopping for safer and more sustainable flip-flops, it’s important to understand the difference between “non-toxic” and “eco-friendly” options.
There are lots of flip-flop and sandal brands marketed as “eco-friendly”. The main focus for these sustainable flip-flop manufacturers is to minimize their product’s environmental impact.
They are often made from sustainable, biodegradable, or recycled materials like natural rubber, cork, hemp, and plant-based leather.
Non-toxic flip-flops go a step beyond sustainable flip-flops and are made without harmful chemicals like phthalates, BPA, and PFAS (also known as “forever chemicals”) which can be found in my recycled materials.
While there is certainly overlap between these two categories, it’s important to recognize that not all eco-friendly flip-flops are necessarily non-toxic, and vice versa.
When searching for the perfect pair of summer sandals, aim to find options that tick both boxes – safe for you and safe for the planet.
The Best Non-Toxic Sandals & Flip-Flops In 2025
Use discount code TFC to save 5%!
If your perfect summer day includes ocean breezes, iced lattes, and zero foot fatigue, meet the Seaside Twill Sandal from Feelgrounds.
The airy cotton‑twill straps keep things cool while a cork footbed cushions every step. No sweaty plastics here!
An adjustable heel strap teams up with a hidden elastic band, giving you that “just‑right” hug without pinching.
Feelgrounds is proudly 100 % vegan and sprinkles recycled materials wherever it can, so your eco‑conscience stays squeaky clean.
Designed in Germany and ethically made in Vietnam, these minimalist flip‑flops encourage natural foot movement and pack flat for travel.
PricE
$89
Materials & Sizing
Upper: Cotton | Insole: Cork | Outsole: Rubber | Women’s US 5-11.5 | Men’s US 7-15
Location/Shipping
Designed in Germany, ethically made in Vietnam, ships to the United States, Canada, Hong Kong, Australia & New Zealand
Use discount code TFC10 to save 10%!
Earth Runners takes ancient huarache inspiration and gives it a modern, wellness‑minded twist.
The Primal’s 7.5 mm walkbase sole lets you feel the ground while still protecting against sharp surprises.
The earth‑grip cotton canvas footbed is dyed with GOTS‑certified organic pigments. No sketchy chemicals were added.
Conductive laces paired with a tiny copper plug create a subtle electrical pathway, so you can “ground” with every step.
Solvent‑free lamination keeps toxins out of the production process, and the entire sandal is vegan.
Handcrafted in sunny California, these flip‑flops dry quickly, lace up snugly, and handle everything from yoga in the park to creek‑side hikes.
Price
$69
Materials & Sizing
Sole: Walkbase® GumEVA Outsole | Conductive laces™ | Women’s US 6-16 | Men’s US 4-14
Location/Shipping
Handmade in California, USA, ships to Canada, Ireland, Germany & Qatar
Use discount code TFC10 to save 10%!
Seasense flip-flops offer the perfect combination of comfort and peace of mind.
Made from 100% natural, biodegradable, and vegan rubber sourced from sustainable harvests in Vietnam, these sandals are free from harmful chemicals like phthalates, BPA, and PFAS.
The natural rubber construction provides a soft, flexible fit that molds to your feet for all-day wear, while also offering exceptional durability.
However, it’s important to note that natural rubber does contain latex, so those with latex sensitivities should exercise caution.
Price
$30
Materials & Sizing
100% biodegradable natural rubber | Women’s EU 36-41 | Men’s EU 42-46.5
Location/Shipping
United Kingdom
Craving that barefoot freedom without the “ouch” factor?
Wildling’s Feder Sandal delivers a feather‑light feel and planet‑friendly build in one sleek package.
A single piece of durable microfiber forms the upper, cutting down on seams, waste, and potential irritants.
The big toe strap keeps the sole exactly where it belongs, while an integrated heel loop boosts longevity without extra bulk.
Every pair is handcrafted in Portugal under fair conditions and uses strictly vegan materials—because wild things shouldn’t harm wildlife.
The result? A sandal so light you might forget you’re wearing it, yet tough enough for city strolls and forest trails alike.
Price
$89
Materials & Sizing
Upper: 100% polyamide | Mid-Sole: 75% paper, 25% polyester | Insole: 80% EVA, 20% walnut shell |
Outsole: Synthetic rubber (partially recycled), silica & natural rubber | Women’s US 5-14 | Men’s US 4-13.5
location/shipping
Handmade in Portugal, ships to the United States & Canada
Use discount code TOXICFREE to save 10%!
Customization lovers, rejoice! Luna’s USA Roots Builder lets you mix and match their Vibram® soles with leather or vegan huarache‑style laces for a sandal that’s uniquely yours.
Built start‑to‑finish in Luna’s own U.S. factory, each pair champions minimalism: just enough material to protect your feet while still letting them move naturally.
The laces wrap securely yet comfortably, making these sandals equally at home on a grocery run or a backcountry trail.
With durable materials and replaceable laces, they’re designed to stick with you through countless adventures—no disposable fashion here.
Choose your colors, choose your sole thickness, lace up, and go live that barefoot‑in‑the‑real‑world life.
Price
From $70+ (Fully customizable so price varies)
Materials & Sizing
Soles: Vibram® rubber & upcycled tire rubber | Footbed: MGT or California-sourced vegetable-tanned leather | Women’s US 6-15 | Men’s US 4-13 | 4.5mm
Location/Shipping
United States, ships to Israel, Japan, Singapore & Australia
NAE Vegan Shoes offers a range of slides and sandals that combine style and sustainability without the use of animal products or toxic chemicals.
Their flip-flops are made from innovative, eco-friendly materials like AppleSkin (apple leather), Piñatex (pineapple leaf fiber), organic cotton, cork, and recycled PET.
(Do note that Piñatex contains petroleum-based materials that we recommend avoiding.)
Each pair of sandals is made in certified factories in Portugal and Spain, where fair labor practices and safe working conditions are prioritized.
NAE Vegan’s partnership with ZeroPact further demonstrates their dedication to reducing their environmental impact by offsetting carbon emissions.
Price
From $82+
Materials & Sizing
AppleSkin™ (Apple leather) | Piñatex | OEKO-TEX microfiber | Organic cotton | Cork | Recycled PET | Women’s & Men’s US 5-13
location/shipping
Made in Portugal & Spain, ships to the United States & select international countries
If you love the idea of going barefoot but still want something chic enough for brunch, Be Lenka’s Summer Barefoot Sandal might just be your sole mate.
Crafted in Portugal with buttery leather straps and a slim 3 mm rubber sole, these sandals give you that coveted “nothing there” ground feel while still protecting your feet from hot pavement.
An extra‑wide, foot‑shaped toe box lets your toes wiggle freely, and the zero‑drop profile keeps your posture naturally aligned for miles of comfy exploring.
Two adjustable straps—one over the instep, one at the ankle—dial in a secure, custom fit, so you can chase kiddos at the park or stroll cobblestone streets without a slip.
Lightweight, flexible, and built to last, the Summer Barefoot Sandal proves that minimalist design and everyday elegance can happily coexist.
Price
$109.99
Materials & Sizing
Upper/Lining/Insole: Leather | Sole: Rubber | Women’s EU 36-43
location/shipping
Handmade in Portugal, ships to the United States & select international countries
Okabashi is a family-owned footwear company proudly operating in Buford, Georgia, since 1984.
Specializing in comfortable and sustainable sandals, they focus on promoting foot health and wellness through sandal designs inspired by principles of reflexology.
Their shoes are crafted from a proprietary, soy-based material that includes, on average, 25% recycled content and 45% soy by weight.
The best part is that this eco-friendly material is free of phthalates, BPA, latex, and rubber.
As one of the remaining 1% of footwear manufacturers in the United States, they take pride in their local production and the community they’ve built over the decades.
Their shoes are vegan, cruelty-free, and machine washable, perfect for wherever your summer takes you.
Price
From $20.99+
Materials & Sizing
Soy based bio-based material | 25% recycled materials | Women’s US 4-15 | Men’s 4.5-13
location/shipping
United States
Use this link to get €10 off!
While not technically flip-flops, each pair of CANO sandals is handcrafted in Mexico using vegetable-tanned leather and natural rubber, ensuring a non-toxic and sustainable choice for your summer footwear.
Their vegetable tanning process uses natural elements like tree bark and fruit instead of harmful synthetic chemicals.
Resulting in soft, breathable, and durable leather free from the toxic chemicals and heavy metals found in many leather dyes.
By collaborating with family-owned workshops and skilled artisans in Mexico, CANO not only creates beautiful, non-toxic sandals but also supports local communities and preserves the art of huarache-making.
Price
From $90+
Materials & Sizing
Upper: Vegetable-tanned leather | Outersole: Rubber | Women’s EU 37-42
Location/Shipping
Based out of Germany, handcrafted in Mexico, ships to the United States & select international countries
Experience all of the benefits of grounding even when you’re wearing shoes with Groundz sandals.
The copper elements in their designs enhance the grounding experience by allowing electrons to flow directly from the earth to the soles of your feet.
Made with eco-friendly, chrome-free, vegetable-tanned leather, these sandals are free from harmful chemicals and treated with water-based, non-toxic dyes.
And the natural rubber outsole won’t bend or warp even on hot summer pavement.
With their focus on minimalist design and functionality, Groundz sandals offer a unique combination of health benefits, comfort, and style.
Price
From $105+
Materials & Sizing
Vegetable tanned leather | Lining: Natural goat skin | Insole/Outsole: Buffalo leather & natural rubber | Women’s US 6-11
location/shipping
United States
Experience the difference of Feelgoodz flip-flops, crafted from eco-friendly materials that prioritize your health and the environment.
Their sandals feature high-quality, STR5L grade natural rubber tapped directly from trees, ensuring the absence of toxic substances like phthalates, BPA, and PFAS.
If you’re looking for a non-rubber option, Feelgoodz offers styles with hemp straps, providing a comfortable and stylish alternative.
Feelgoodz uses recycled rice husks and natural rubber from local producers to help support local agriculture and preserve our planet’s precious resources.
When you choose Feelgoodz, you’re not just investing in a pair of flip-flops, you’re supporting a brand dedicated to making a positive impact.
Price
$30
Materials & Sizing
100% natural rubber | Women’s US 6-10 | Men’s US 9-13
location/shipping
United States
Munjoi’s All-Dai sandals are redefining summer flip-flops.
These multifunctional sandals have a knitted upper made from a blend of cotton, hemp, and a little bit of spandex for stretch.
The real star of the show though is the sole, which is made from a combination of algae-based foam and sugarcane, offering an eco-friendly, non-toxic alternative to petroleum-based materials.
Munjoi’s algae-based foam is made from algae biomass harvested from polluted waterways, actively contributing to environmental cleanup efforts.
Recognized by TIME magazine as one of the best inventions of 2022 and a recipient of the Good Design Award, Munjoi’s All-Dai sandals are a great choice if you are looking for functional, sustainable, and non-toxic flip-flops.
Price
$58
Materials & Sizing
Upper: Cotton, hemp & spandex | Sole: Sustainable algae foam | Women’s US 5-11.5 | Men’s 7-14
location/shipping
United States, ships to select international countries
Jivanas sandals are the epitome of non-toxic, sustainable luxury.
Handcrafted by skilled artisans in Nepal using 100% natural and biodegradable materials, each pair is a testament to the brand’s commitment to ethical production and environmental stewardship.
The high-quality Italian vegetable-tanned leather used in Jivanas flip-flops is produced using natural elements like tree bark, leaves, and fruit, resulting in a soft, breathable, sandal that is totally toxin-free.
The adhesives, dyes, and conditioners used are also derived from organic, plant-based sources, ensuring a completely non-toxic and biodegradable product.
By supporting Jivanas, you are not only investing in a pair of stunning, non-toxic sandals but also contributing to the creation of fair-wage jobs and the empowerment of local communities in Nepal.
Price
From $140+
Materials & Sizing
Italian vegetable-tanned leather | Women’s US 5-11 | Men’s 7-14
location/shipping
Handcrafted in Nepal, ships to the United States
Original Cork flip-flops offer a unique, non-toxic alternative to traditional rubber sandals.
Handcrafted in Portugal using sustainably harvested cork, these sandals are 100% natural and vegan.
Cork, a renewable resource obtained from the bark of cork oak trees, provides a lightweight, durable, and supportive material for your feet.
The elasticity and compressibility of cork allow the sandals to mold to your feet over time, providing the most comfortable, customized fit.
Price
$48.24
Materials & Sizing
Straps/Upper: 100% natural cork | Soles: Rubber & cork blend | Women’s & Men’s US 6-14
location/shipping
Handcrafted in Portugal, ships to the United States & select international countries
Waves flip-flops are made entirely from natural rubber sourced from Sri Lankan rubber trees.
These sandals are 100% biodegradable and recyclable.
The natural rubber used in both the soles and straps provides a lightweight, comfortable fit that molds to your feet, so your feet stay comfortable and supported all summer long.
Waves prioritize paying their Sri Lankan workers a fair wage and safe working conditions so you can feel good about investing in a non-toxic, sustainable sandal that supports environmental conservation and social responsibility.
Price
From $14.99+
Materials & Sizing
100% recyclable natural rubber sourced from Sri Lanka | Women’s US 5-9 | Men’s US 6-12
location/shipping
Sri Lanka, ships to the United States & select international countries
🔍 If you love sandals that let your feet move naturally, you’ll also want to check out our favorite adult barefoot shoes over on SKL.
How to Make Your Non-Toxic Sandals Last Longer
- Clean Them Regularly: Use a soft brush and mild soap like Castile soap to remove dirt and debris from your sandals after each wear. This will prevent buildup that can break down the materials over time.
- Protect Them From The Elements: When not in use, store your flip-flops in a cool, dry place away from direct sunlight. Exposure to extreme temperatures and moisture can cause materials like natural rubber and cork to degrade more quickly.
- Rotate Your Shoes: If you wear flip-flops frequently, consider investing in multiple pairs and rotating them. This will give each pair time to dry out and recover between uses, extending their lifespan.
- Repair Minor Damage Promptly: If you notice any small tears or separations in your flip-flops, address them right away. Many eco-friendly brands offer repair services or sell replacement parts, which can help you get more use out of your sandals.
- Recycle Them Responsibly: When your flip-flops do reach the end of their life, look for recycling programs that accept worn-out sandals. Some brands, like Okabashi, even have their own recycling initiatives, making it easy to dispose of your shoes in an environmentally friendly way.
Ready to Ditch the Toxins, One Step at a Time?
I know flip-flops are basically the uniform of summer, and I couldn’t bear to give them up either! And the best part? You don’t have to!
As you’ve seen, there are so many beautiful non-toxic flip-flop brands made from safe, high-quality materials that I have a feeling you won’t even miss your old pair. I know I don’t!
Plus, these safer sandals are built to last, with no more cracked soles or broken straps after just a few wears.
Now that you know what might be hiding in conventional flip-flops, there’s no need to settle for toxic materials just to stay cool.
From natural rubber and cork to vegetable-tanned leather and even algae-based foam, the options out there are stylish, comfy, and totally toxin-free.
So whether you’re heading to the beach, running errands, or just soaking up the sun, you can step out in sandals that look good, feel good, and do good.
Check out our other amazing Non-Toxic Fashion articles:
- Low-Tox Raincoats & Non-Toxic Rainboots For Kids
- Safest Raincoats & Rain Boots For Adults
- Organic & Non-Toxic Summer Dresses
- Organic & Non-Toxic Leggings
- Non-Toxic Underwear Brands
- Non-Toxic Fashion For Adults
- Non-Toxic Workout Clothes
- Non-Toxic Fashion For Kids
- Non-Toxic Baby Clothes
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