Materials used: The upper: sustainable leather The lining: fleece + Primaloft insulation The sole: PU + polyester (removable) The insole: rubber (PowerGrip) Made in Vietnam Barefoot properties: The PowerGrip outsole is designed with an emphasis on flexibility, durability, and support for the natural movement of the foot The Primaloft technology is the absolute top among thermal insulation materials The upper made of sustainable leather Tested on a million bends Barefoot footwear attributes Flexible sole Zero drop: flat from heel to toe, supporting correct body posture Wide foot-shaped toe box Lightweight EAN/SKU: %eanorsku%