Double insoles, Intreped, Scotchgard, Durocloud Diabetic friendly pending Scotchgard treated extra roomy bootie in cow suede with convenient inside zip. Structured EVA heel cup and arch supporting high density open cell PU foam helps to hold foot in place to prevent pronation. Plus an EVA spacer to customize fit. Flexible rubber sole with Durocloud etpu foam to provide responsive cushioned comfort with every step.