You are on skis that allow you to grip uphill and slide downhill while maintaining control to turn and stop because of the design of the ski and boots. A snow-grooming machine cuts two grooves in the snow, allowing your skis to glide in a straight line on the trails. Forward motion is gained by using a diagonal striding motion not unlike shuffling in socks over a polished floor. Pushing with a pole in each hand helps maintain the momentum.
Classic skiing is the oldest form of transport on snow but has also developed into a modern Olympic sport. Classic skiing can be enjoyed by skiers from beginners to the elite.