Josef Seibel Erin This comfortable clog features a supple, soft full grain leather upper. The leather is naturally oil tanned, with vegetable dye completely through. Handsewn construction gives extra life, flexibility and quality. The handsewn upper is Double Lock Stitched, meaning it will not fray apart if you have a loose stitch. 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. Classic European Fit is snug in the instep and heel and roomy in the toe box. 1 1/2 heel. Enjoy Josef Seibel Erin experience..