While flip-flops do provide the wearer with some mild protection from hazards on the ground, such as hot sand at the beach, glass, thumb tacks or even fungi and wart-causing viruses in locker rooms or community pools, their simple design is responsible for a host of other injuries of the foot and lower leg.

Before coming to Brazil, just say the name Rio de Janeiro, all over the body can feel the hot white sun, the salty wet sea breeze blowing sweat body sticky. This is where all travel books and documentaries are shown to outsiders: Rio is the beach, the beach is Rio.

Flip-flops are popular as summer comfort shoes, but they aren't the right type of footwear for every activity. They aren't made for running, walking long distances, or lifting and carrying. In addition, you should steer clear of poorly-made flip-flops and choose those that give your feet appropriate support and cushioning. Learn what to look for in well-constructed flip-flops that won't fail your feet.