The Riley Faina Boot features, HP3 technology, a three part comfort system featuring a soft foam channel down the full length of the insole. The system utilizes different foam thicknesses in the forepart and heel pad to alleviate stress points on the foot while you walk. Hand-burnished veg tanned leather uppers with suede trim. Skeletal synthetic leather linings. Full grain genuine leather socklining. Genuine scalloped leather welt. 80mm (3 1/4ï) fully stacked leather heel. Molded rubber outsole provides durability and traction.