Very comfortable shoe. Fits true
"Very comfortable shoe. Fits true to size. Sole has good cushion and arch support. Right amount of flexibility. Easy to adjust Velcro. Very happy with purchase."

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.
Comfortable footwear with real support underneath is a closet essential, and Urania delivers that with a flat sandal built biomechanically to actually support your arches, not just look like it does. Fine stitching details on the suede leather upper give it a chic touch, and a soft, gentle inner lining keeps things comfortable against the skin. The polyurethane sole adds firm, shock-absorbent cushioning, and a deep heel cup promotes real stability so you can walk with confidence rather than caution. It's an easy slip-on design that delivers a classic, casual comfort experience without complicating things. Urania carries APMA approval, and at roughly 0.372 lbs a pair with a 1 inch heel and 3.25 inch width, it's a versatile wardrobe staple across summer, spring, and fall. These fit true to size, so stick with your regular. If you're between sizes or your feet run wide, go up a full size (7.5 orders as an 8), not down. Medium width fit throughout. The Size Chart has more detail if needed.
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: 5.0 / 5 from 10 reviews.
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"Very comfortable shoe. Fits true to size. Sole has good cushion and arch support. Right amount of flexibility. Easy to adjust Velcro. Very happy with purchase."
"For the price, these sandals are a great buy. I especially appreciate the versatility of the straps for the right fit!"
"I bought a pair on clearance at Amazon two years ago. They were so comfortable so, I was sad when I accidentally broke the left one. I went directly to the website to buy another pair. They fit very well and doesn’t make my feet tired."
"Very comfortable, easy to slip on and adjustable straps. What’s not to love!"
"Very comfortable"
"Supportive, comfortable, and cute"
"Good very good"
"I received my sandals on time, and they fit perfectly. I have worn them every day since getting them. Love them. Jennifer"
"My legs are very narrow so its so comfortable and it fits so well"
"Great fit, fabulous arch support. Quite comfortable right out of the box. Love them!"