Classic Technique Classic technique consists of 4 different techniques that are used on different types of terrains. Two mostly used are diagonal stride and double poling techniques. Double poling is the fastest version of classic technique mostly used for flat terrain skiing. For double poling the skier only uses the power from the push with the poles. Motion is straight forward and push is directly opposite to the direction of movement. Diagonal stride is the technique used for skiing uphill. In order to perform diagonal stride technique the skis need to be waxed with grip wax to make increase the friction in the middle part of the ski base, to be able to kick with the ski in the opposite direction to the direction of glide and gain a push from it. Classic technique illustrative picture from https://www.shutterstock.com/editorial/image-editorial/pyeongchang-2018-winter-olympic-games-cross-country-skiing-south-korea-24-feb-2018-9436632b A description of diagonal stride technique from https://ars.els-cdn.com/content/image/1-s2.0-S0021929015003784-gr1_lrg.jpg