Armor - Sharp Armor against sharp damage like bullets, knife stabs, and animal bites. Armor - Blunt Armor against blunt damage like club impacts, rock falls, and explosions. Armor - Heat Armor against temperature-related damage like burns. Insulation - Cold How much an apparel made of this material improves a wearer's minimum comfortable temperature when worn. Insulation - Heat How much an apparel made of this material improves a wearer's maximum comfortable temperature when worn.