My slip ons are supportive
"My slip ons are supportive , comfortable but also stylish. I love the square back."

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.
Most sandals look great on a shelf and punish you after an hour of actual wear. Otis is built to avoid that trap entirely. A contoured polyurethane footbed wraps around your arch from the very first step, a non-slip outsole keeps you steady on nearly any surface, and a signature gold buckle keeps the look sharp whether you're at the beach or running errands across town. The deep arch contour relieves foot pain on contact, taking pressure off the bottom of your foot immediately instead of making you wait it out, and it's light enough to travel with while still being supportive enough for all-day wear. Otis carries APMA approval, so the everyday comfort here is genuinely backed by more than a good-looking design, whether you're headed to the beach or out for a casual brunch. Your regular size is the safe choice. Between sizes or wide feet? Go up a full size instead of down (7.5 becomes 8). Medium width fit. Check the Size Chart if you want the specifics before ordering.
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: 4.888889 / 5 from 9 reviews.
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"My slip ons are supportive , comfortable but also stylish. I love the square back."
"Hello how can I return the sandals I purchased ORDER NO 16984AT. ITEM L0344Khnki10 and ITEM NO L0353-B RED 10. My wife cannot fit the sandals."
"Love the fit"
"Very comfortable; easy slip-ons."
"super comfortable, good support"
"These shoes are well made and very comfortable. They provide good support for your feet, especially for your heels. They look good and feel good! I have received many compliments when I wear these sandals. I am pleased with my selection!"
"Very comfortable to the feet!"
"This is my second pair of Aerothotics. I like the quality & comfort. My only little complaint is the foot bed could be a little more cushioned, as on long walks you may feel it."
"Very chic looking and very comfortable!! My second pair."