They make real kick shield for that purpose. Only time i see those pads worn is if they're doing hard sparring. For future reference, it helps when you explain why you'd need them.

Here's a link to a pad we always used: http://www.amazon.com/Warrior-WIBSH-Pro-Strike-Pad/dp/B002EJ4PCE/ref=sr_1_1?ie=UTF8&qid=1422377177&sr=8-1&keywords=warrior+kick+shield