While we have more recently become known for our low profile lasts, the 310, with its exaggerated sprung toe and tapered heel has maintained a devout following over the years, particularly in Asia and Europe. The distinct shape of the 310 last is a nod to the early days of footwear manufacturing when bark tanned sole leather was so stiff that it prevented a natural flex point from forming. The sprung toe creates a rolling effect that assists with the walking motion during the break in process. This version is made using a heavyweight Harness leather from Horween with a hard wax finish and noticeable pull-up. Purchase the Service Boot Mocha Harness here.