Made with durable goat leather and PrimaLoft Gold insulation, Black Diamond's Spark Gloves combine the simplistic function and style of your favorite work gloves with high end materials and EVA foam protection. . Temperature range: 1030degF 12 1degC. Full goat leather construction. 100% waterproof BDry insert protects the insulation and keeps your hands dry. 60 g PrimaLoft Gold synthetic insulation provides heat trapping warmth that insulates even in the wettest weather maintains 96% of warmth when wet breathable, packable, and incredibly soft. Fixed brushed tricot lining for added warmth and comfort. Neoprene cuff with hook and loop closure. EVA foam on back of hand for protection.