K2 designed the SuperBright 90 for versatility and hard-charging performance. According to our testers, they hit the mark and multiple testers praised its stability and liveliness. "It's versatile enough to be a one-ski quiver in all but the deepest pow," Weatherbee said. "It transitioned from crud to groomer with ease," Rodman said. "It's really easy to turn and quick to initiate." The mix of hard- and soft-snow performance comes from tip rocker, a 90-millimeter waist and K2's BioFlex3 core with aspen underfoot, paulownia in the tip and tail, plus a bamboo stringer and lean strips of Titanal. Hybritech sidewalls combine sidewall and cap construction and the tips and tails are skin compatible.