The Ti 100 is Atomic's softest race tech boot (the flexes offered in the Race Tech line are 150, 130, 100). If you are looking for ultimate performance in a straight last, four buckle race boot and are lighter weight, the Ti 100 is for you. The fore foot has plenty of room, while the heel pocket holds your foot firmly. This is a boot for serious skiers and racers. This is a genuine World Cup Boot with a neoprene team pro liner, 35mm power strap and 95mm ultra-low volume last, for a perfect race fit.