Snowboard became quite famous just some years ago, so we basically adopted many words from the US, especially when we talk about tricks.
Some italian words used talking about snowboard might be:
Slope: pista
(Pista) Nera: Black run
Board: tavola
Boots: scarponi
Bindings: attacchi
Helmet: casco
Goggles: occhiali
Gloves: guanti