MANY TRAINING PROGRAMS INCLUDE STRIKES TO THE CALF AND ACHILLES TENDON.  THIS PIECE OF EQUIPMENT PROTECTS FROM THE TOP OF THE CALF TO THE BOTTOM OF THE HEEL.  THE STRUCTURE AND THICKNESS IS THE SAME AS THE SHIN GUARD.  THIS IS A REAR VIEW OF THE #112. IT ALMOST REACHES THE FLOOR FOR THE MOST PROTECTION POSSIBLE.  IT IS SHOWN HERE CONNECTED TO THE BACK OF THE KNEE PROTECTOR.  IT IS NOT INCLUDED WITH THE BASIC SUIT.  SOLD AS A PAIR.