Do I need a Zipfit Ski Boot Liner?

Zipfit make custom ski boot liners using the most premium materials available. Skiers report that using these liners creates greater comfort, enhanced performance and a liner that often outlasts the ski boot shell! It is not unheard of for Ski patrollers to put over 1000 days in their Zipfit liners. The question is “Do I need a zipfit liner in my ski boots?”