None of our scrotums have a thick sheath yet!! If that bothers you, wear a cup or jock strap. I wore one for baseball and felt practically invincible. I was reminded that is not true when I took a terrible pitch to the tailbone (how they missed that bad remains a mystery to me today). If you want to wear all the chest protectors in the world you might as well not mountain bike because well, let's be honest here: NO PAIN NO GAIN. Good to know that your getting out on the trails though! Practice practice practice!

Josh