Alpina Discovery Back Country Nordic Cross-Country Skis Wood core and cap construction provide years of trouble free performance Non-wax Posi-grip Base and 3/4 length steel edges give great off-trail control Sidecut: 68-60-65mm, great off-trail stability with turn initiating sidecut Alpina Solution sizing: &lt;120 lbs = 160cm, 120-145 lbs = 170cm, 145-175 lbs = 180cm, 175+ lbs = 190cm