Josef Seibel Bancroft Supple, soft full grain leather uppers and hole punch detail. The leather is naturally oil tanned, with vegetable dye completely through. Handsewn construction gives extra life, flexibility and quality. No shank or stiff MIDSOLE: . No break in period required, meaning comfort right out of the box! Fully leather lined. Air ped insole features 6mm of memory foam cushioning, which contours and shapes to the foot providing tremendous support. Polyurethane OUTSOLE is shaped to be anatomically correct to fit the shape of your foot, providing arch support. Superb flexibility to go along with great shock absorption. Enjoy Josef Seibel Bancroft experience.