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CHICAGO — Walking in Crocs may leave you limping.

The rubbery clogs are a popular choice in summer months, and according to podiatrists, they do offer good arch support. But Crocs are not meant to be worn for extended periods.

“[T]hese shoes do not adequately secure the heel,” Dr. Megan Leahy of the Illinois Bone and Joint Institute in Chicago told the Huffington Post. “When the heel is unstable, toes tend to grip which can lead to tendonitis, worsening of toe deformities, nail problems, corns and calluses.”

Added Alex Kor, president of the American Academy of Podiatric Sports Medicine, “[O]n a daily basis, I see patients who come into my office complaining of arch or heel pain and they are wearing Crocs.”

Crocs were originally started as a boating shoe back in 2002. The company now provides a wide array of multi-seasonal designs. The shoes are known for being soft and lightweight.