Summer Sandals: Fashion Trend Risks Foot Damage Without Proper Support

Your foot does start to change shape and tends to splay a little bit over time
A podiatrist explains what happens when you suddenly switch from structured shoes to unsupported flip-flops.
Mark

Why has the flip-flop become so controversial if it's not actually bad for your feet?

Mimi

Because most people don't transition gradually. They wear structured shoes all year, then switch to flip-flops full-time in summer. That sudden change is what causes strain.

Mark

So the shoe itself isn't the problem—it's how we use it?

Mimi

Exactly. Your foot adapts to whatever support you give it. Take away that support abruptly, and your foot has to work harder than it's prepared for.

Mark

What about people who wear flip-flops year-round? Are they fine?

Mimi

They're likely fine because their feet have adapted gradually. The damage happens in the transition, not in the wearing.

Mark

Is there a summer sandal that actually looks good and doesn't damage your feet?

Mimi

Several. Birkenstocks, FitFlops, even Crocs now. The key is finding something with a contoured footbed and actual structure. You don't have to choose between fashion and foot health.

Mark

What's the most overlooked part of foot care?

Mimi

Probably moisturizing. People don't realize how quickly open sandals dry out skin. By the time you notice your heels are hard or your toenails look fragile, damage has already started.

Mark

Should people avoid minimalist shoes entirely?

Mimi

No, but don't rush into them. Ease in gradually. The mistake is buying a pair and immediately going on a long hike.

  • The flip-flop's fashionable revival — including kitten-heel versions and customized designs — is drawing millions back to a shoe that offers almost no structural support.
  • Podiatrists warn that the real danger isn't the sandal itself, but the sudden switch from structured footwear, which forces unprepared feet to adapt and slowly change shape.
  • Supportive alternatives — FitFlops, Birkenstocks, Crocs, wedges, and even wooden clogs — are bridging the gap between orthopedic necessity and summer style.
  • Minimalist barefoot shoes are gaining ground, but experts urge a slow transition; diving straight into a long hike can undo the very benefits these shoes promise.
  • Simple daily habits — moisturizing with urea-based emollients, checking shoe flexibility, and getting feet measured regularly — can prevent the quiet, cumulative damage open sandals accelerate.

Each summer, millions of people trade structured shoes for sandals without a second thought, and their feet quietly bear the cost. The flip-flop is not inherently harmful, but the abrupt abandonment of support — repeated season after season — reshapes the foot in ways that accumulate over a lifetime. Podiatrists are not asking us to forgo summer freedom, only to approach it with the same gradual intention we would bring to any significant change. The body, it turns out, asks only to be listened to.

The flip-flop has long carried an unfair reputation as the shoe podiatrists love to condemn. This summer, it's having a fashion moment — kitten-heel versions are trending, and people are investing in customized pairs — but the clinical warnings haven't gone away. The truth, according to podiatrist Dr. Helen Branthwaite of the Royal College of Podiatry, is more nuanced: flip-flops aren't inherently bad, but context is everything.

The real risk lies in transition. Spend most of the year in cushioned, structured shoes and then switch abruptly to flat foam sandals for an entire summer, and your feet face strain they're simply not prepared for. Over time, the foot spreads and changes shape — much like a body that has worn a corset suddenly released from it. The damage is gradual, quiet, and cumulative.

The solution isn't to abandon summer sandals but to choose them more deliberately. Fashion forecaster Angela Baidoo points to FitFlops as a sturdier alternative, while Crocs — once purely functional — have found a new audience among younger generations drawn to their orthopedic design. Birkenstocks, wedges, wooden clogs, and even the classic fisherman sandal all offer structure without sacrificing style. For those drawn to minimalist barefoot shoes, the advice is simple: ease in slowly, and don't attempt a long hike on day one.

Foot care beyond shoe choice matters too. A sandal that folds in half easily is probably too flimsy for daily wear. Open shoes dry out skin faster than most people realize, making daily moisturizing with a urea-based emollient important. And because feet change size and shape throughout life, getting them measured regularly is less about vanity than about maintenance. Summer freedom and foot health are not opposites — they only require a little intention.

The flip-flop has a problem with its reputation. It's become shorthand for foot damage—the casual shoe that podiatrists warn against, the thing you slip on without thinking and then wonder why your arches hurt by evening. But the real story is more complicated than a simple condemnation of the summer staple.

This season, flip-flops have gotten a makeover. Fashion forecaster Angela Baidoo points to the kitten heel flip-flop as the trend to watch: low enough to feel effortless, high enough to feel intentional. "It's really kind of easy to just slip in and slip out of," she says. The style has caught on partly because flip-flops themselves are experiencing a moment of investment. People are buying customized versions, paying more for something that feels almost weightless to wear. The appeal is obvious. In heat that makes your feet swell and sweat, a flip-flop is freedom.

Yet the warnings persist. Flip-flops lack arch support. They offer minimal joint stability. They're thin, flat, and offer almost no structure. So are they actually bad for you? Dr. Helen Branthwaite, a podiatrist and chief clinical adviser at the Royal College of Podiatry, offers a more nuanced answer: not inherently, but context matters enormously. The damage comes from transition. If you spend most of your year in structured shoes—sneakers with cushioning, dress shoes with rigid soles—and then suddenly switch to flip-flops for the entire summer, your feet are under strain they're not accustomed to handling. The foot begins to adapt, spreading slightly, changing shape over time. Branthwaite uses an apt comparison: remove a corset after wearing it constantly, and everything shifts. The foot does the same thing.

This doesn't mean abandoning summer sandals. It means being intentional about which ones you choose. Baidoo recommends FitFlops, which are sturdier and contoured, a world apart from the thin foam sheets cut into flip-flop shapes. Crocs, once dismissed as purely functional, have become fashionable again, especially among Gen Z, and they're designed with orthopedic principles in mind. Birkenstocks and similar footbed sandals offer the same structural support. Wooden clogs—the kind worn by doctors and chefs who spend their entire shifts on their feet—are making a comeback. Scholl slider mules, the original orthopedic shoe, have even found their way back into fashion. Wedges work too, providing support through the entire shoe while creating a flattering line at the ankle. For those seeking something less casual, the fisherman-style sandal, that history-teacher staple from the 1970s, offers structure without formality.

The trend toward minimalist barefoot shoes requires its own caution. These shoes promise a return to natural movement, but Branthwaite's advice is simple: ease into them. Don't buy a pair and immediately take a five-mile hike. Your feet need time to adjust.

Beyond shoe choice, foot care itself matters. Pay attention to the sole—it determines how your foot moves and how you walk. If you can bend your flip-flops in half easily, they're probably too flimsy to support the load your regular shoes carry. Open sandals dry out skin quickly; you might not notice until your heels harden and your toenails begin to look fragile. Daily moisturizing with an emollient containing urea helps. And feet change constantly throughout life. A size six at twenty might not be a size six at forty. Getting your feet measured regularly isn't vanity—it's maintenance.

The real lesson is that summer footwear doesn't have to be a choice between comfort and style, or between looking good and protecting your feet. It requires only that you transition gradually, choose shoes with some structural integrity, and pay attention to what your feet are telling you. The flip-flop isn't the enemy. Negligence is.

The problem comes if you go straight from wearing a very structured shoe to wearing flip-flops a lot, which means your foot is under more strain than normal.
— Dr. Helen Branthwaite, podiatrist and chief clinical adviser at the Royal College of Podiatry
People are investing a bit more, getting their flip-flops customised, because it's something that is just so easy to wear.
— Angela Baidoo, fashion expert and trend forecaster
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