Very comfortable and the arch
"Very comfortable and the arch is incredible. I can finally wear sandals and still support my bad knee. Thank you"

Flumen is the classic flip-flop done properly, with cushioned vegan leather straps finished smoothly and stitched with real care instead of an afterthought. The ergonomically designed footbed provides real arch support that makes every step genuinely comfortable, not just tolerable, and a polyurethane gel injected sole adds durability alongside that comfort. A deep heel cup supports the hindfoot to help with posture alignment, and the arch of these thong sandals is built specifically for medium arches. This pair is accepted by the APMA, so whether you're wandering around town or unwinding after a workout, you're getting real grip, shock absorption, and a water-friendly design that holds up to actual use. Go true to your usual size. If you're a half size or on the wider side, round up a full size instead of down (7.5 becomes 8). Medium width fit. The Size Chart has the numbers 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: 4.5423727 / 5 from 59 reviews.
Flumen Arch Support Flip Flops offer exceptional arch support and comfort, praised for their ergonomic footbed. Customers appreciate the stylish design and cushioned vegan leather straps, though opinions on the straps' comfort vary. The fit is generally well-received, but sizing can be inconsistent.
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"Very comfortable and the arch is incredible. I can finally wear sandals and still support my bad knee. Thank you"
"very comfy and stylish, would buy again"
"Love these shoes. I can walk mikes in them and no pain anywhere! Best shoes ever!"
"They fit perfectly and the arch support is just what I needed! Most of flip flops you buy in stores don't have it and strains my lower back. I'm thankful to have found these because they are my favorite type of shoes to wear."
"Love these sandals or flip flops. They are so comfortable!😊"
"Look good and comfortable reasonably priced"
"Love these shoes. I bought them for comfort style and get tons of compliments on them. Every time I wear them"
"I really like the support of the arch and the toe. The color is very pretty and matches some of my outfits well."
"Aurothotics are my go to flip flops because they are made of high quality materials, they comfort each step so my hips dont hurt abd they are worth every penny. i have been uying for several years."
"Absolutely love these flip flops! Super comfy and the arch support is amazing."