These are Attraction's Lot. 444 Engineer Boots, an extremely handsome engineer block built on their A010 Specialty last. Cut with a sleek and flattering profile, they've got just the right amount of visual heft to them, and style handsomely with a wide variety of different trouser fits. The model 444 boots are made in Tokyo, by a factory that specializes in the production of work boots, and finished with a 270 degree Goodyear flat welt & heavy duty upper stitching. This batch is made from a special "Avancorpo" bullhide leather with an incredible grain texture. Avancorpo usually refers to a specific portion of the horse front, a cut of hide coming from the chest area — in this case, it's being used to denote which section of the cow was used, as this is not horsehide. This is a veg-tanned leather, and is fully dyed black (not tea-core). The uppers feature a very pronounced grain throughout, in addition to being exceptionally thick and durable. They're finished with the usual suspects of Engineer Boot trims: a BILTBUCK rubber heel and outsole combo, nickel-plated steel buckles, and stamped leather insoles. The midsoles use a super-thick buffalo leather, a unique construction detail that pays off immensely here, as the extremely plush buffalo hide is surprisingly lightweight and flexible, breaking-in relatively quickly as well. Choose 0.5 size smaller than your Brannock size for the best fit. See sizing info for more details. Built on the Attractions A010 Specialty Last Black bullhide upper leather 270 degree Goodyear flat welt Partially structured toebox Nickel-plated steel buckles Rolled shaft edges Steel shanks Buffalo leather midsole BILTBUCK outsole and heel Attractions stamped insole Unlined shaft Tonal stitching Take 0.5 size smaller than Brannock Made in Japan