The knee is particularly vulnerable when you drive a go-kart, as it is leaning against the fuel tank. But if you have a knee pad, you can avoid bruising.
The Sparco knee protector is specially designed for karting and to fit under a karting suit. The knee pad is made of vibration-dampening stretch material that breathes against the skin.
EN1621-1:2012 / level 2 certified PU material