The Caty mid-calf boot is a Matisse legacy style that has transcended over the seasons. With quality craftsmanship and luxe materials, these boots only get better with each wear. - Upper: leather. - Outsole: man made. - Leather lining. - Padded insole. - Leather stacked heel. - Inside zipper closure. due to the nature of the leathers used on this style, each pair will look similar but not identical to the one pictured. These are considered natural variances and part of the intended look.