http://www.rei.com/snowsports Does the backside of your mountain serve up firm snow and variable terrain more often than pure fluff? Look no further than the HardSide skis from K2. Although they certainly don't disappoint on deep powder days, the HardSides excel on cut-up crud and out-of-the-way stashes. Extremely lightweight aspen and paulownia wood core produces a natural flex, allowing the ski to achieve full contact with the snow throughout the turn.