Love love these sandals. This
"Love love these sandals. This is my second pair. Won’t be my last. Very comfortable and supportive."

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.
Aislynn is one of those classic flip flops that just works, no matter the terrain. It's easy to maintain and keeps you steady even on rough ground, which matters if you're managing plantar fasciitis and need footwear that actually helps rather than aggravates it. A well-structured sole distributes pressure evenly across your foot and keeps your posture aligned, and the comfortable toe post design means no burning blisters between your toes by the end of the day. The arch supportive construction, paired with a high-quality polyurethane sole, is what makes this one worth the money rather than just another basic sandal. Shimmery straps come with foam padding at the base over a durable PU outsole, and the lightweight midsole cuts down on discomfort so you're not limping home after a long walk. It's biomechanically designed for maximum arch support and stability, carries APMA approval, and the deep heel cup supports your hindfoot for better posture. Your usual size is the right call. Between sizes or wider feet call for sizing up, not down (7.5 orders as an 8). This runs medium width. The Size Chart has exact measurements if you'd rather not 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 11 reviews.
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"Love love these sandals. This is my second pair. Won’t be my last. Very comfortable and supportive."
"Love this flip-flop!"
"These are perfect! So comfortable and cute in their simplicity. I now have them in 4 colors and will probably buy a few more. . ."
"Love ❤️ these, fit is great…"
"Awesome!!! I bought a pair in FL in black in December and they became my favorite- this is my 2nd pair and I love this color - prettier than picture"
"Bought two pairs cause they are comfy, supportive and look good!"
"I absolutely love my Aerothotic sandals. They are very cute extremely comfortable, and the arch support is superb."
"I absolutely love these sandals. So comfy and great price"
"This is my second pair of flip flops and I also purchased the slippers. All so very supportive and comfortable. I would highly recommend these!!"
"I love the fit and the look."