The Tecnica Demon 100 are downhill ski boots with a 100mm last for advanced skiers looking for an excellent fit and comfort with the performance characteristics of a race boot, but with a more forgiving fit and flex to allow for all day skiing. The Quick Instep allows for a low volume boot that is still amazingly easy to get on and off. i-Rebound features a metal plate that attaches the cuff to the lower with four metal-to-metal connection points. The i-Rebound provides forward flex resistance and power rebound as well as rear support.