Last: 99 mm – Slightly narrower than average performance last suitable for most feet.

Easy On / Off – The front of the shell opens a full 90 degrees to slide your foot in and out with ease in all temperatures. Like putting on slippers!

Flex: 110 – A stiff flex suitable for advanced to expert level skiers.

Intuition Pro Tongue Liner – Crafted out of Intuition foam, the Intuition Pro Tongue Liner's laminate in specifically engineered to provide energy transfer while maintaining warmth in a custom, moldable fit. Slip on the Intuition Pro Tongue Liner and feel the power of the highest performing liner Intuition has ever created.

Revolve Plus Shell – The Revolve Plus Shell takes the same 99mm last and opens up the toe box for a roomier feel out of the box. The Revolve Shell uses the original 3-piece design and adds replaceable soles for extended longevity and increased traction.

Grilamid Tongue – Designed for K2's 3 piece FL3X boot collection because of grilamid’s superior strength to weight ratio and consistent flex across a wide range of temperatures.

Ladder Buckle – The ladder buckle features an intuitive, easy to remember, macro-size adjustment, plus a micro-twist for fine adjustment with a light, easy-to-handle aluminum lever.

45 Degree Heel Lock – Keep heels where they belong. Placing the middle buckle at an optimal 45 degree angle creates a solid lock for the heel to stay put when pressuring the tips and tails of the skis.

3 Buckles

Cam Booster Strap – Booster Straps provide maximum ski boot performance, increased control and shin protecting shock-absorption.

GripWalk® Outsoles Preinstalled – Removable and interchangeable ISO 9523 alpine rockered soles collaboratively designed to work with Marker's GripWalk binding system for better grip and added comfort when walking and standing in boots, but doesn't compromise the power transmission and release function between the boot and binding when skiing.