Chicago Protective Apparel Hot Not Sleeve, Heat Resistant Nomex Superior arm protection by means of heat-resistant Nomex. Multi-purpose arm protection up to 500F with constant handling, and up to 700F intermittent handling. For use with hot solid surfaces only, not for heavy welding or molten metals. Sleeve spans from elbow to fingers; fingertips exposed to offer increased dexterity. White coloring. One size.