They should cover the shin, no more, no less.
You know it's time to get new shin guards if you out grow them, they become moldy, irritate your skin, or crack. It is important that your equipment is kept in good condition.
I would say a year or two
Myhockeystore.com They still advertise the Jofa shin guards. The 9090 is one of them.
Because they wear shin guards and most of the shin guards go down to your ankles.
your hairy legs and pray no one kicks you in the shin
they protect your legs
No they are for all players
They are commonly referred to as "Shin Pads" or "Shin Guards".
They block the force. Think about it what does a breastplate protect a knight. Or a Kevlar vest block a bullet. While shin guards don't block all of your body they block your shins
Yes, Jackie Robinson is credited with inventing shin guards and he wore hand made wooden ones.