Technology improves everyone's life day by day, and you can't deny this fact. A sincere salute to all those geniuses' head who has come up with such an incredible ideas. Here we have one of such. All your life your running shoes might have failed to grab your attention to those small tiniest holes at the top of them, but don't worry if you're still wondering what are they?
And, what purpose they're meant to serve then just scroll down here, to know more.
.. and even your gymming and all other exercises will become much more comfortable.
Don't forget to share.