ECCO Womens Size Chart There’s nothing wrong with leaning on your insoles for a little extra support to get you through the day! Combination of premium leather and soft foam. For a custom fit, trim the insole to size using the cut-to-fit line. Ideal for both casual and formal style shoes. Added arch support and integrated cushion points for enhanced comfort. The shank developed by ECCO® features their unique BIOM® technology. Imported.