Love my new sandals. Comfortable
"Love my new sandals. Comfortable and looks great with shorts and Capri pants. Ordering a different color now!"

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.
Pelagic was designed with actual functionality in mind, not just looks, with convenient Velcro straps on the upper and back that let you adjust the fit to whatever works for your foot that day. The Velcro closures keep things secure and stable across different activities, and a built-in heel cup adds enhanced stability by cradling your heel rather than leaving it to slide around loose. It's equipped with real arch support, which matters if you're spending your day at a picnic, on an outdoor adventure, or even out horseback riding, your feet stay comfortable and supported no matter what you're doing. A water-resistant, mesh fabric upper is breathable and keeps feet dry, and an outsole with wave-patterned lines grips well on slippery surfaces. This is a versatile slipper-style pick across summer, spring, and fall. Order your regular size. Between sizes or wide feet call for a full size up, not down (7.5 orders as an 8). Medium width. The Size Chart has the numbers if you'd rather measure than guess.
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
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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: 5.0 / 5 from 7 reviews.
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"Love my new sandals. Comfortable and looks great with shorts and Capri pants. Ordering a different color now!"
"Sporty-cute!"
"These are much better than last order. The previous ones ordred were damaged and I never received a response to my email. I liked them enough to try again."
"Love these. Good archbsupport and just the right level of height for me."
"This shoe is so cute with jeans and shorts! So comfotrable, love the footbed. May go back for another color!❤️"
"Great boat shoe."
"The strap on these sandals is adjustable, which is a lifesaver for my wide feet. Infact, these look cute on feet."