Question: How long are cross country skis?
About the article "Nordic combined", section "Cross-country skiing equipment".

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The skis are long and narrow, to distribute the weight of the skier and allow the skier to move quickly.
Typical ski dimensions are 2 metres in length, about 5 centimetres in width and one to four centimetres in thickness at different stations along the length of the ski.
Depending on the ski design and purpose, they are fitted to the skier based on height and weight.
The toe of the skier's footwear is attached to the ski with a binding, while the heel remains free.
Characteristics of cross-country skis:  Width – Generally, a skating ski is shorter and narrower than a classic ski.
A ski intended for off-track use is wider and heavier.
Cross-country skis are sometimes informally known as "skinny skis" because of their narrowness compared to alpine skis.
Tip – To help cut through deep snow, the tip of a cross-country ski is typically higher and more curved than an alpine ski.
Camber – for classic technique, camber, the amount of vertical curvature in the ski, is crucial to create a "kick zone".
Bottom surface – Many skis have smooth bottoms which require waxing, but waxless skis are available.
Edges – For track skiing, skis usually do not have metal edges; backcountry and Telemark skis however often have edges.
Sidecut – indicates the shape or profile of the ski.
Sidecut affects the way a ski tracks (travels in a straight line) and turns.
Skis with limited sidecut and a straighter profile (Classic skis) track or glide forward easily.
A ski with lots of sidecut will turn more easily but not track as smoothly.
Skating skis usually have minimal sidecut: the tips and tails are only slightly wider than the waist.
This increases stability in the glide phase.
Materials – Formerly, many skis were made of wood alone, or with a fiberglass or synthetic coating over the inner wood layer.
Modern skis have synthetic foam cores.  
The public is allowed to use the grounds of Dorney Lake when sporting events are not being run.
The two-kilometre-long flat, straight paths that run along each side of the main lake make it a popular venue for runners, skaters, and even cross-country skiers practising with roller skis. 
Glide waxing is more common than grip waxing, simply because alpine skis, snowboards, waxless cross-country skis, and skate skis can all be treated with glide wax, but only plain cross-country skis need grip wax.
Waxless cross-country skis usually have etched gripping surfaces that eliminate the need to apply grip wax.
Usually, the process begins with a cleaning of the board by using specifically formulated wax remover (see below), which removes both the old wax and any other dirt that may interfere with the adhesion of the wax.
After the bare ski base is exposed, there are typically three methods of waxing: 
Modern ski bindings are based on the Fennoscandian model of the 19th century.
The bindings of Telemark ski and cross-country skis were developed from the Ugro-Lapp type. 
 Völkl — Skis, Snowboards, and accessories Marker — Ski bindings and accessories Morrow — Snowboards 5150 — Snowboards Liquid — Snowboards LINE — Skis Olin — Skis Madshus — Cross Country Skis Holden Outerwear 2002-2007 — Snowboard Outerwear — Holden bought back all shares of the company and went independent in 2007.