4FRNT Sinister

The 4FRNT Sinister is a big-mountain freeride ski shaped with input from Stinius Skjøtskift. It pairs a cambered underfoot section with smooth tip and tail rocker, giving it a lively, balanced feel that floats in soft snow and stays composed in variable terrain. The mid-fat waist makes it playful enough for creative lines while remaining stable when you push the pace.

Built around an aspen core and reinforced with a Titanal Stomp-Zone underfoot, the Sinister delivers energetic rebound and reliable damping. Whether slashing pillows, stomping landings, or arcing through open alpine faces, it keeps a smooth, confident ride from top to bottom.