I'd mentioned in this post about snowboarding kit that was going to try out knee pads as when I'm teaching friends or boarding with people who are a lot slower than me I sit on my arse which tends to get wet and cold...
Might sound a bit odd but if you have ever taught a snowboarding virgin you don't do much stand up on the board ;)
Anyway back to the point..
I bought the Forcefield body armour knee pads check them out here
I have to say its well worth buying if your learning OR doing tricks of any type..
I didn't use them all week as didn't need them when going on massive long rides as I don't fall much or stop much.
I did this year spend a day riding switch an wouldn't have made it pass 1hr without these pads on as would of had no knee left..
100% recommend them unless cruising around at speed and don't fall much...