Icebug Comfort High Insole (Unisex) - CharcoalOffering superior cushioning and adaptable arch support, this insole is perfectly suited for those with high arches and extended periods of standing or walking. 5 mm thickness Medium and High arch heights Medium medial arch height: 31. 5 mm High medial arch height: 36. 5 mm Perfect for boots and higher volume shoes For high arches The Comfort High insole has a 36. 5 mm longitudinal arch height, made for those with a natural high arch. It helps