Our clic unisex 1460 8-eyelet lace-up boot in black Felix Rub Off is made from a high-shine synthetic material with a beautiful tactile feel and a two-tone finish. But the boot always remains a true Doc specimen: grooed edges, yellow stitching, and our iconic air-cushioned sole that is oil and resistant, with excellent anti-abrasion and anti-slip properties. And most importantly, the sole is attached with one of the finest reinforcement systems aailable: the Goodyear welt. Construction This is a Goodyear welted product. Unlike many footwear, the upper and sole are not simply glued but thermally sealed and stitched together. Regular fit.