Level 3 Liner: 100 percent heat-moldable Intuition Ultralon Liner with integrated Velcro closure * STI Evolution Foam Outsole: better cushioning than traditional foam material and dramatically reduces weight of the boots by elimination the need for heavy duty rubber outsole * Level 2 Footbed: Molded PU footbed for ultimate comfort with dual density PU in heel for impact protection * Articulating Cuff * 3D Molded Tongue