SilaChlor® heat-resistant gloves are made of heavy duty poly/cotton string knit providing comfortable, durable protection against heat and abrasion, with excellent value. Heat resistance up to 500° F (260° C). The leather palms wrap around the index finger and thumb, with an additional piece of leather on the thumb crotch to increase wear for gloves last longer. Offers ANSI level 4 heat protection and ANSI level 4 puncture resistance.