Shin pads or shin gaurds.
In soccer (football) there are shin guards which cover your shins, obviously. But there are no manditory leg pads. You could google FIFA laws of the game to see if you are allowed to wear other pads but you are not required. Hope this helps
the only padding you actually need for soccer are shin guards. They help reduce the pain of being nailed in the shin because a handful of nerves run down the front of your lower leg.
Batsman normally wares a cricket helmet, padded cricket gloves, elbow pads, jock strap and leg pads. A wicket keeper normally where leg pads, wicket keeping gloves, a jockstrap and leg pads. Depending on the individual they may also ware more specialised padding for protection against the ball.
the size of the leg pads
Box lacrosse goalies do wear leg pads made of hard plastic material like a big shin guards, in field lacrosse goalies can only wear soccer style shin guards
use bubble rap for leg pads
mainly your right leg
They have a hardened plastic front for protection, they have some firm foam behind that, then a stretchable material to ensure they are tight to the leg.
brian or vaughn
They are called hock boots and they are worn to protect th horses leg when jumping.