I like the shoes very
"I like the shoes very much . They have good arch support . Onlyest thing is they are big for there size . I could not return for a different size . They would not let me ."

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.
The orthotic sandals womens FM402 sets the bar high for foot ease and resilience. Its cutting-edge rubber outsole boasts exceptional grip, ensuring steady footing on any surface. The sumptuous quick-drying inner lining keeps your feet feeling cool and dry, regardless of the weather. Engineered with customized support and a subtle arch, it offers tailored comfort for prolonged wear, perfect for all-day excursions.
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: 4.6666665 / 5 from 12 reviews.
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"I like the shoes very much . They have good arch support . Onlyest thing is they are big for there size . I could not return for a different size . They would not let me ."
"Excellent for high arches !"
"Love them and oh so comfy"
"Can't wait for summer to wear my new thongs!"
"These shoes are wonderful… I would suggest sizing down as they do run on the larger size. I have purchased many pairs of shoes from aerothotics…their customer service is exceptional!!!"
"Just had Achilles surgery and needed comfortable shoes for everyday wear. These are perfect!"
"Comfort, style and durable as always."
"Not my favorite pair of Aerothotics. The strap betweeny toes is too short to make them as comfortable. Also the footbed isn't as fitted as their other styles."
"cute, but runs small"
"I got them yesterday only. These Eden are cute summer flip flop sandals are my beach essential now. Not only are they stylish and supportive, but the non-slip feature makes them perfect for sandy walks!"