Fits well and seems to
"Fits well and seems to be able to walk miles in them without a pain! Glad I got them! Sheila"

Selecting the perfect shoe size may sometimes seem to be confusing; this can be due to the many conversions between women's and men's sizes or understanding different measurement systems such as European shoe size. Many people search online prior to making a purchase because many different regions have different systems for defining their shoe sizes.
For the purpose of this guide, we will clarify the conversion from size 9 to all other size conversions, as it happens to be one of the most commonly searched for shoe sizes on the internet, so all of the conversion formulas above would also apply to other shoe sizes as well. Therefore, once you understand how each formula/conversion works, you can then apply them to any shoe size with confidence.
Elevate your wardrobe with the Dune (L0366) flip-flop — merging timeless style with all-day comfort. Its finely woven vegan leather upper adds an artisanal touch, while the padded interior guarantees a snug fit. The ergonomically shaped footbed, adorned with gentle ripple patterns, enhances grip and supports natural foot alignment. With its durable PU sole, this sandal is your versatile companion for everything from seaside strolls to casual city outings, ensuring both style and practicality wherever you go.
Choosing Your Size
Order your usual sandal size for the best fit.
Half Sizes or Wide Width
If you wear a half size or have wider feet, size up to the next full size. Ex: If you’re a 7.5, we recommend ordering an 8.
Fit Notes
Ships within 24 hrs from Austin, TX
Enjoy 30 days of comfort—love them or exchange free.
Try a pair risk-free for 30 days
Safe, encrypted payments every time
Trusted by foot health experts, Aerothotic sandals carry the APMA Seal of Acceptance — so you know they’re not just comfy, they’re good for your feet.
Yes, order your usual sandal size. If you’re between sizes or have wider feet, we recommend sizing up.
The fit is a medium width, but the cushioned design adapts to most foot shapes. If you’re in between, size up for a more relaxed fit.
Yes! Our sandals are made with water-friendly materials that dry quickly and won’t lose shape.
Many of our customers find relief from everyday foot pain thanks to the arch support, cushioned heel cup, and shock-absorbing footbed.
No worries — you’re covered by our 30-Day Comfort Promise. Try them out, and if they’re not right for you, exchanges are free and easy.
Overall rating: 4.7222223 / 5 from 18 reviews.
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"Fits well and seems to be able to walk miles in them without a pain! Glad I got them! Sheila"
"I like this so much I bought this pair in three colors!"
"Fit is good. Color goes with a lot of my clothes."
"I have a lot of pretty good flip flops in the $20- $25 range. I saw these and decided to give them a try because I liked the look of them and the good reviews. I chose the Dune Wine color. I will say these are the best ever. The straps look like woven leather and I love the color. Its kind of an Orangie red. Wanted orange but not bright orange and didnt want red as I already have red so this is perfect. They are so well made. Great arch support and the foot bed cradles your heel and keep your foot in place. Great cushioning. The straps are so soft on the underside. You could walk for miles in these in comfort. Lots of great colors to choose from also. I usually wear 8 1/2 W but no W so I went with 9 M and the fit is perfect. They are more expensive but in my opinion worth every dollar. If you can live with the price dont hesitate. The difference between these and the $!5.00 flip flops is night and day. Even a big difference between my $25.00 ones. This is my new go-to brand for flip flops."
"Sooo comfy along with refined stylish look you can wear everywhere! Sizing is perfect! Will buy other colors again!"
"I love these...great look fit and quality!! I get compliments wearing them."
"These sandals are well-made and seem to have enough arch to support those who have plantar fasciitis. However they were too small for me. I consider myself a 10.5 but often buy size 11. My heels extended just beyond the back of the 11s in Dune Black. Since there is not a larger size I must return them. I recommend ordering a size up."
"Love my Aerothotic sandels. They are very comfortable. Unlike other sandals, I can wear them shopping all day & my feet don’t hurt at the end of the day because of the support they provide."
"Wear them everyday. Good support."
"Very comfortable! If you have arch issues these are the sandals for you!"