Sierra's board control is unparalleled.  His flip in/flip out ledge combos are at the forefront of the world's best techgnar skating.  Witness craziness for yourself with his latest and greatest part that just dropped for Bones Wheels!

Kevin Kowalski continues to nuke crusty concrete bowls, burn cradles, leap channels upside down, wreck pools and destroy the full pipes of the world!

The man is unstoppable!

Prepare for spot annilation with this new clip via Thrasher magazine.