It is crucial for wearing on foot to protect harm or germs from somewhere we don't know.It may be costed a fortune or cheaper depend on your choice. But its functions never betrayed you. It only stay under the lowest and carries the whole weight of you.But It doesn't care about either its situation or how much you have and still doing its work. You're always thinking to get rid of it when it will be suffered severe torment.
 
But it will continue to let you choose a chance.