They are good on my
"They are good on my feet just not sure I like the style"

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.
Aster's split-toe design isn't just for looks, it genuinely helps with comfort and function. A breathable mesh material gives you a secure fit while discreetly covering bunions, so you're not stuck choosing between style and comfort. This one's built for casual settings, with an ergonomic footbed that holds up for long-lasting comfort during everyday wear and relaxed outings, not just short trips. Lightweight midsoles with advanced polyurethane technology cut down on fatigue and discomfort, and a medium heel cup helps your posture and stability rather than just cushioning your step. The design provides excellent support for low to medium arches, and fabric split toe straps resist blister formation, which matters if you've dealt with that before. A PU injected sole adds extra comfort and durability, and a wave-patterned outsole keeps you steady across different surfaces. Aster carries APMA approval and fits true to size in whole sizes. Your usual size is the right call here. Between sizes or wide feet? Round up, not down (a 7.5 becomes an 8). 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
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: 4.6282053 / 5 from 78 reviews.
The Aster Split Toe Women's Sandal offers a unique split-toe design that combines style and functionality. Customers appreciate its comfortable and breathable mesh material, perfect for long walking hours. The ergonomic footbed provides support and alignment, making it ideal for casual settings and everyday wear.
Review topics: [].
"They are good on my feet just not sure I like the style"
"I must return them to wide for my skinny feet but beautiful and well made"
"Great deal, great sandals!"
"Love these Split Toe Shoes-Comfortable and Size is perfect."
"Love these! I have them in both colors"
"I say that this footwear is of premium quality and gave me the best results in terms of comfort and style too."
"This sandal is surprisingly lightweight, comfortable, and durable."
"Bunions look so odd and sandals like Aster can handle these conditions so easily. The softness of the upper and comfort of the footbed have made life way easier than before. Highly recommended."
"I wore them almost every day in summer because it guarantees a fearless feel to my feet. The heel height is perfect for me, just the way I want and I feel secured from sudden slipping."
"I have worn them for extended hours and they have been very comfortable for use."