MEDIUM DENSITY LINER BLENDING MOBILITY AND PRECISION BOARD CONTROL * INTUITION LINERS - HEAT FORMED CUSTOM FIT - A FEW MINUTES ON OUR COOKER AND THIS PATENTED MATERIAL WILL FORM TO THE EXACT SHAPE YOUR FOOT FOR A LIFETIME * RAD FOAM - REALLY AWESOME DAMPENING IN YOUR FOOTPAD FOR THE BIG IMPACT LANDINGS * DOUBLE LAST - CREATES AN EXACT FIT FROM YOUR FOOT TO THE SHELL OF THE BOOT FOR THE BEST IN COMFORT AND RESPONSE * REMOVABLE J-BARS CUSTOMIZE YOUR HEEL POCKET