The Dalbello Men's Viper 8 Ski Boots are high performance overlap style alpine boots engineered for ambitious, hard charging performance skiers who take on terrain and conditions. Lightweight, tri-injection shell architecture wraps the foot precisely, is easy to put on and take off, and delivers highly energized response and power. Featuring Dalbello’s revolutionary Contour 4 Fit Technology with anatomical shell relief points & innovative innerboot construction maps and shapes the contours of the foot to accommodate 4 critical fit points. Vipers' versatile 100mm performance last is slightly wider for an easier and more relaxed fit.