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Are Flip-flops Bad News for Your Feet? Here’s What Podiatrists Really Think About Summer’s Hottest Shoe Trend

FN interviewed podiatrist Dr. Anne Sharkey to learn about the real dangers lurking in popular summer shoes.

Flip-flops are a longtime summer staple, but this year thong sandals have become especially trendy as people wear the style not just to the beach but to all kinds of events — even to a red carpet, if you’re Jonathan Bailey, who slid on a buzzy set by The Row to attend a photo call for “Jurassic World Rebirth.”

It really seems like flip-flops are everywhere you look, and they’ve transcended their traditionally casual connotation. Pharrell Williams showcased the luxury LV Flip on the Louis Vuitton runway; Rosé of Blackpink recently wore flip-flops as part of a nighttime look including jeans and a lacy top.

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The style is certainly easygoing, warm weather-friendly and potentially very fashionable — but what are the costs of living your summer in flip-flops?

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Most people who’ve walked a step too far in a pair know they’re not actually the most comfortable shoes, from the thin sole to the dreaded thong strap, causing toe blisters.

“From a podiatry perspective, they are one of the least supportive types of shoe gear,” double board-certified podiatrist Dr. Anne Sharkey told FN. “The majority of traditional flip-flops are thin, flimsy and offer minimal arch support, cushioning or shock absorption. In an effort to provide the best support and protect from injury, a sandal that has arch support and cushioning is ideal.”

NEW YORK, NEW YORK - JULY 25: Rosé of Blackpink is seen in the Upper East Side on July 25, 2025 in New York City. (Photo by TheStewartofNY/GC Images)
Rosé of Blackpink is seen in the Upper East Side on July 25 in New York City. TheStewartofNY/GC Images

Wearing flip-flops can lead to an increased chance of plantar fasciitis, a foot issue which Dr. Sharkey explained.

“Plantar fasciitis is one of the most common pathologies bringing patients into podiatry offices,” she said. “Plantar fasciitis is a common cause of heel pain, and it is the result of inflammation of the ligament that supports your arch. This inflammation occurs as a result of a lack of support or repetitive stress and strain to the plantar fascia. Wearing shoes that lack structural support and cushioning increases the risk of developing plantar fasciitis.”

Dr. Sharkey recommends a few brands offering flip-flop styles blending function and fashion, including Vionic (naming the Tide, Shore and Bella styles); Waco Shoe Company (naming the Revitalign Yumi style); and Olukai.

Vionic Tide II Toe Post Sandal.
Vionic Tide II Toe Post Sandal. Vionic

If you’re going to have an active day, it’s in your best interest to avoid flip-flops altogether.

“When looking for alternatives to flip flops, I recommend sandals that have straps that come further on to the midfoot. This design feature will add stability. Birkenstocks are a great example here. I also love the trend of platform sandals,” Dr. Sharkey said, naming the Vionic Strappy Platform Sandal and the Waco Remi Wedge. “The addition of a heel strap makes these models more secure and stable, which allows for more even pressure distribution.”

So, how should one approach wearing flip-flops?

Try to find brands that craft them with support in mind, and avoid selecting the style for long walks or other sustained physical activity. Even thin-soled sneakers are problematic, as podiatrist Dr. Zach Thomas discussed with FN earlier this year.

Dr. Sharkey offered, “My suggestion would be to choose flip-flops that are going to give you the best support and to avoid wearing them for long periods of standing or a lot of walking. Stick to the flimsy flip-flops for the beach, pool deck and locker rooms. Bottom line is that flip-flops were never intended to be all-day walking shoes.”