The Pure Pro 100 from Rossignol is a ski boot for the advanced skier. The smartness of the sensor technology reduces weight and transfers energy directly to the ski, while the Flex Adjustment options allow performance to be tailored to each skier's needs. Custom OptiSensor liners with Merino Wool insulation enable pin-pointed customization for the ultimate in comfort, warmth and support. The Pure Pro 100 offers a wider, more forgiving 100mm fit. Measuring a ski boot is custom work.