NIB! Zavala ALT Hydro Combat Boots. Step out in this classic Zavala bootie from Dr. Martens. The lace-up boot features contrast stitches and an Air Wair heel loop, reflecting an impressive signature style. A lightly padded insole offers reliable comfort all day. Style, comfort, and durability. - Leather upper - Lace-up closure - Inside zipper closure - Round toe - Synthetic lining - Lightly padded footbed - Synthetic midsole - Approx. 6" shaft height - Approx. 11.8" leg opening - 0.75" platform, 0.75" heel - Synthetic sole