Outfitted with a moderate 100-mm waist, the Boundary Pro 100 is the hard-charging ripper we see people reaching for day after day. Building on Black Diamond's best-selling performance of the Boundary 100, the Boundary Pro features an upgraded flat, solid-core construction for added torsional stiffness that provides premium power transmission and the dampness and stability to hold fast on harder snow. Austrian-made with pre-preg fiberglass and a poplar core, the Boundary Pro 100 is a technical big-mountain ski with the dimensions to grip it and rip it.