The Rossignol S3 Koopman Ski brings directional, pow-friendly float and symmetrical park-and-pipe performance in one package thanks to Rossignol's Amptek rocker technology. While the dimensions listed suggest a directional ski, the true sidecut of the S3 is a symmetrical 110 / 98 / 110 when you're carving off a groomed lip. Amptek rocker means the wide tip and pinned tail only come into play when you get into deep snow.
You can get all the specs here http://www.backcountry.com/outdoorgear/Rossignol-S3-Koopman-Alpine-Ski/ROS0387M.html.
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