Opal Cushion Soft Flip Flop Comfortable Sandals for Women
Opal Cushion Soft Flip Flop Comfortable Sandals for Women

The FM401 flip flop sandals deliver unmatched comfort and resilience with each stride. Its advanced rubber outsole with enhanced grip ensures firm footing and stability on any terrain. The plush quick-drying inner lining keeps your feet cool and dry in all conditions. Engineered with tailored support and a subtle arch, it offers a personalized fit for enduring convenience, ideal for extended outings. The gentle nylon toe post and cushioned foam footbed provide added support and softness, making every step a pleasure. This sandal epitomizes the perfect fusion of style, comfort, and practicality!
- Heel Height (inches): Measures up to 0.7” approx...
- Summer, spring, and fall wardrobe must have.
- Width measures around 3.5” approx...
- Arch Type: Supportive for medium arches.
- Weight (Pair): Weighs approx. 0.365 lbs. /pair.
- Available colors: Black, Brown, Northern Droplet, Pastel Lilac, Tan and Turquoise.
Benefits
Benefits
Features
Features
Size and Fit
Size and Fit
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
- Medium width fit.
- See our Size Chart for measurements.
Shipping & Returns
Shipping & Returns
Free Shipping $60+
Ships within 24 hrs from Austin, TX
30 Day Comfort Promise
Enjoy 30 days of comfort—love them or exchange free.
Easy returns & exchanges
Try a pair risk-free for 30 days
Secure Checkout
Safe, encrypted payments every time
Made for Comfort, Backed by Support
Podiatrist Recommended Comfort
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.
As Seen In
Questions? We’ve Got You Covered
Do these run true to size?
Do these run true to size?
Yes, order your usual sandal size. If you’re between sizes or have wider feet, we recommend sizing up.
Are they good for wide feet?
Are they good for wide feet?
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.
Can I wear them in water?
Can I wear them in water?
Yes! Our sandals are made with water-friendly materials that dry quickly and won’t lose shape.
Do they help with foot pain?
Do they help with foot pain?
Many of our customers find relief from everyday foot pain thanks to the arch support, cushioned heel cup, and shock-absorbing footbed.
What if they don’t work for me?
What if they don’t work for me?
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.


