Love them or hate them, Crocs -- the rubber clogs¹ that started out in 2002 as boater-floaters for Jimmy Buffett types in Florida but have now sold more than 300 million pairs in 90 countries — are here to stay. 

 

卡洛驰于2002年创建在佛罗里达，当时是为划船运动而生产的吉米·巴菲特式的轻便橡胶鞋。而无论你喜欢还是讨厌，这些鞋已经在90个国家售出了三亿多双——它已经扎稳了根基。

 

Treasured for their comfort, rubberiness and floatability, they're equally popular with toddlers and Mario Batali. 

 

"They are great at the dog park or in the backyard where I am likely to step in something that is very difficult to clean off sneakers but comes off easily with a hose or a wipe from my clogs," one wearer writes in an Amazon review. 

 

Crocs are affordable², and at this point, classic ... but what do podiatrists -- you know, actual doctors who want you to live your best life -- think about them? 

 

They're not fans -- at least not the doctors we spoke³ with. 

 

"Unfortunately Crocs are not suitable for all-day use," Dr. Megan Leahy, a Chicago-based podiatrist with the Illinois Bone and Joint⁴ Institute, told HuffPost. While she granted that they "offer nice arch support," she added that the real reason you shouldn't wear them over long periods of time is that "these shoes do not adequately secure the heel. When the heel is unstable⁵, toes tend to grip which can lead to tendinitis, worsening of toe deformities, nail problems, corns and calluses. The same thing can happen with flip⁶ flops⁷ or any backless shoes as the heel is not secured." 

 

Dr. Alex Kor, the president of the American Academy of Podiatric Sports Medicine, told HuffPost that the most important feature in any shoe is the shank, the supportive structure between the heel and the toe. "Patients are more likely to have foot pain if their shoes bend in the shank," said Kor. 

 

Crocs, according to Kor, "are the 'poster child' for shoes with a flexible shank. ... In other words, on a daily basis, I see patients who come into my office complaining of arch or heel pain and they are wearing Crocs," he said. 

 

"The only two types of patients that may benefit from wearing Crocs are patients that have a very high arch or those who suffer from excessive edema of their legs and ankle," Kor said. "But, under no circumstances can I suggest wearing Crocs 8 to 10 hours per day." 

 

Leahy agreed, telling HuffPost that Crocs are "OK to use for trips to the beach or the pool, but should not be used for long walks. I do notice that children (and even adults) tend to trip and fall more in these shoes."

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