Every model in K2' s massive ski collection features one of five variations of the rocker concept: All Terrain (moderate tip rocker plus camber), Speed (very mild tip rocker plus camber), Catch Free (mild tip-and-tail rocker plus camber), Jib (mild tip-and-tail rocker plus a flat midsection), and Powder (rockered forebody plus cambered rear). Like all models in K2' s Backside Adventure series, the Darkside features holes in the tip and tail to accommodate pre-cut climbing skins (sold separately). At 128mm in the waist, it' s the group' s widest model, built for steep, deep north-facing couloirs (Get it? "Dark Side?"). Powder rocker keeps it floaty and maneuverable, while lightweight construction makes it easier to haul uphill than other skis of comparable width.