FLOSO Mens Padded Thermal Gloves With Palm Grip (3M 40g) Polyester, , Premium quality mens water resistant gloves with Thermal Warmth Thinsulate Insulation. Microfibers have more surface area to trap more warm air and insulate better than large fibers of other insulations. Adjustable strap. Fiber contents for outer 100% polyester, inner 65% polypropylene and 35% polyester.