Believe it or not, there's been a lot of research regarding flip-flops. A recent study found that flip-flop wearers tend to grip the footwear with their toes, causing shorter stride length and improper force when their feet hit the ground.
Why Birkenstocks Aren't a Long Term Solution to Foot Pain
The Crazy Daisies: It's official: Flip Flops are a Flip Not
Have a Flip-Flop Obsession? Here's How They're Ruining Your Feet (Plus 5 Cute Alternatives) - Support the Foot
Be Mindful Of Your Feet While Wearing Flip-Flops This Summer
ARDEE FOOT CLINIC - CHECK OUT THE RISK OF WEARING FLIP FLOPS TOO LONG!! 👣👣👣 We tend to be more active in the summer which can put extra strain on your feet.
Why Are Flip Flops Bad for Feet - footsurgeon
Flats and flip-flops can hurt your feet, too - Vox
Courthouse Chiropractic - Beware of basic flip flops!
Foot Conditions Caused by Wearing Flip-Flops