Crispi SRL created the Evo boot for the New Telemark Norm (NTN) binding. Collaborating closely with Italy to develop a new flex pattern for this boot led to the new technology of the BFC (Bellow Flex Control).

The current model was too stiff. We were challenged to soften the boot without losing performance

After ideating on several options the boot bellow became a simple, low cost option to move forward with.

The answer came in testing the boot, thinning  the plastic across the boot allowing for a softer flex to start the Telemark turn.