KEEN Women's Revel II Boots Gargoyle/Beet Red Size 8 Leather Heel measures approximately 1.5 inches" KEEN.DRY waterproof breathable membrane 200g KEEN.WARM lightweight, antimicrobial insulation made from charcoal bamboo Heat Trapolator underfoot technology has three layers of heat trapping materials that hold warm air in Nubuck upper KEEN.PROTECT reinforced rubber toe cap provides added impact protection