Question

athletes wear shoes which have a Spy from them why

Answer 1

That is spike not "spy" .They wear shoes with spikes to strengthen their contact with the ground . These shoes help them by removing the problem of slipping which can cause them injuries.

Answer 2

$\huge\mathcal{ANSWER:}$

Sportsmen use shoes with spikes to increase the friction,so that the shoes do not slip while they run or play