Twin-tip skis, also known as "freestyle skis", are skis with turned-up ends at both the front and rear. Twin-tip skis make it easier to ski with one's back facing downhill, allowing reversed take-offs and landings when performing aerial maneuvers. The turned-up tail allows less application of aft pressure on the ski, causing it to release from a turn earlier than a non-twin-tip ski. Twin-tip skis are generally wider at the tip, tail, and underfoot and constructed of softer materials to cushion landings. Bindings are typically mounted closer to the center of the ski to facilitate the balance of fore and aft pressure, while skiing backwards or "switch", bindings are built lower to the ski for easy rail sliding. The popularity explosion of twin-tip skis created a push for the inclusion of more terrain park elements at ski areas across the globe. In the past five years twin tips have become popular among youth skiers, ages 14-21. Once considered a passing fad, twin-tip skis have become a staple ski in the product line of all major ski-producing companies worldwide, with a few specializing in only twin tips. Line Skis, started by Jason Levinthal, is the first company to market only twin-tip skis. The first twin-tip ski was the Olin Mark IV Comp introduced in 1974. The first company to successfully market a twin-tip ski was Salomon, with their 1080 ski.
