The Dalbello Viper 10 performance ski boots are engineered for advancing all mountain skiers looking for increased response and control. The Viper 10 is a classic 2 piece, 4 buckle overlap design with a lightweight, tri-injection shell architecture that wraps the foot precisely, is easy to put on and take off, and delivers highly energized response. True Balance Stance engineers into the boot a balanced and centered angle for optimal performance and response when used with today's new ski shapes, cambers, and rocker designs. Dalbello’s revolutionary Contour 4 Fit Technology provide an accurate, comfortable, all day fit that is precisely mapped to your foot for outstanding out-of-the-box comfort and performance. This excellent performing boot offers dynamic power transfer and smooth flex in all terrain and snow conditions for larger or athletic intermediates and strong advanced skiers.