The glove set contains Rubber Gloves and Cotton-Fabric Gloves: Rubber Gloves Made of strong, resistant, flexible and especially thin butyl rubber that offer users both dexterity and protection. Impermeable to chemical and biological warfare agents for at least six hours. Manufactured in accordance with U.S. military specification MIL-G-43976. Cotton-Fabric Gloves Absorb perspiration and are designed to be worn beneath the rubber glove. Soft and comfortable.