3D Molded Toebox eliminates stitching to keep your feet dry; its streamlined design makes binding entry quicker and smoother; Transition Zone tech seamlessly connects the Rift's sole to the Exo Spine, accelerating response and preventing damage to the back of the boot when entering or exiting the binding; Dual-Dial BOA Fit System enables super quick entry and exit, and features separate dials to tighten the upper and lower zones; Bombproof BOA H4 Coiler increases the speed of entry and quickly takes up lace slack; Awesome foot hold that starts right inside the liner, with 3D molded material and J-bars around the ankle; Ascent combines an EVA midsole and rubber outsole for the optimal balance of cushioning, weight and grip; Silver liner can be heat molded for a custom fit and features a Custom Flex Zone at the toes, 8mm PE foam, and added PU support; Pull the inner laces to tighten a shell-mounted harness. Velcro secures the tongue; 3D Dual Density Insole is anatomically designed to cradle your foot and constructed from two densities of EVA, with firmer material supporting the heel cup and arch; Asymmetric 3D Molded Tongue features a sharper curve on the medial side to match your natural forefoot shape