K2 Seth: Designed, tested, and approved by Seth Morrison, K2’s new big mountain ski isn’t only outrageous in appearance, but in design as well. Whether it’s raging big mountain lines, the deepest powder, or laps through the park – the new K2 Seth can tackle everything. The K2 Seth vicious ski gets this versatility using Progressive Sidecut technology with a deeper radius sidecut in the tip and less in the tail. The K2 Seth is the tool that provides a diverse approach to skiing.