Proenza Schouler Lug Sole Combat Boots in Grainy Leather - 37 The Lug Sole Combat Boots are made from grained leather with a whipstitch-inspired waxed lace-up front. Featuring a signature logo pull tab and Rubber lug sole with contrast topstitching. Small defect on whipstitching on inner sole, looks like shoe glue, pictured! Very good used condition, barely worn. With dust bag (pictured).