The Slate collection has rugged styling, using quality leather uppers combined with a durable, yet lightweight, sole. This is a Goodyear-welted product. The upper and sole are heat-sealed and sewn together, not merely glued like many footwear constructions. A waxy leather with an attractive two-tone color surface. Greenland is a naturally milled leather, there will therefore be a certain variance in grain texture, which must be considered part of the look.