For women that require all the performance of aggressive men's boots, the Dalbello KR Kryzma ID Ski Boots pack a mean punch. For powerful control and precision, the 115 flex is one of the stiffest women's offerings on the market. When you are hoping for a more forgiving flex, the interchangeable B tongue, included in the box, is approximately 10 flex points softer. The fully heat moldable, compression resistant IntuitionR liner is warm and comfortable. The narrow, low volume shell fit with Dynalink Rearfoot Retention is designed to provide maximum ankle and heel hold for excellent agility.