The Jackson is one of BIRKENSTOCK's new lace-up boots. It features a water-repellant upper and waxed seams, as well as a robust, rubber sole to ensure a secure grip. And the cork frame of the outer sole guarantees an authentic design. The upper is made from water-repellant oiled suede. Removable, anatomically shaped cork-latex footbed Upper: oiled suede Footbed lining: smooth leather Insole: Suede - The flexible leather lining, which is gentle on the skin, nestles up softly against your foot and adjusts to its contour. The open-pored and thus very breathable surface makes for a comfortable foot climate, even during more strenuous physical activity. Sole: thermoplastic rubber Footbed material: Cork - cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning.