Horween produces Black Marbled Shell Cordovan by applying several layers of black dye onto vegetable-tanned shells and then scraping off layers of the finish to produce its marbled effect. The end result is a field of obsidian with veins and speckles of rich amber and verdigris. Each shell is a sedimentary-like layering of blacks, honey, and sometimes green. Like a marble slab, bronze and emerald striations cut through at varying angles. Due to the hand-processed nature of creating the marbled effect, color variation is expected. The pattern and shade will not match the photo sample. Some pairs will be amber-heavy, others green. Color variation between panels is also common and considered acceptable. This shell is the antithesis of a cookie-cutter leather. Note: Pre-orders cannot be canceled, refunded, or exchanged. Goodyear-welt construction Leo last Marbled Shell Cordovan from Horween Full-grain leather kip lining 360º Split-reverse welt Polished brass eyelets and speed hooks Vegetable-tanned leather insole, welt, and midsole Cork filler with steel shank  Full-grain leather heel counters Double-bend leather outsole Every pair crafted in our factory on Xiamen Island, China